### Models

Term Definition Keywords Partner
diameter The distance from one side of the circle, to the other, passing through the center.
diameter KJGAG
liquid A liquid is a nearly incompressible fluid that conforms to the shape of its container but retains a (nearly) constant volume independent of pressure
liquid KJGAG
Parabola

Angled body movement at an angle to the horizon.

parabola KJGAG
Parabola

Angled body movement at an angle to the horizon.

parabola KJGAG
Molecules Solid matter is composed of tightly packed particles. Liquid matter is made of more loosely packed particles. Particles can move about within a li ...
molecule KJGAG
Cirlce, radius, diameter, circumference The radius is the distance from the center outwards. The diameter goes straight across the circle, through the center. The circumference is the di ...
Newton's law Newton's three laws of motion may be stated as follows: Every object in a state of uniform motion will remain in that state of motion ...
newton's laws KJGAG
Pythagorean theorem It states that the area of the square whose side is the hypotenuse is equal to the sum of the areas of the squares on the other two sides. ...
Pythagorean theorem KJGAG
Angle An angle is s shape, formed by two lines or rays diverging from a common point (the vertex). ...
angle KJGAG
Area of geometric shapes Area of a Rectangle = Base × Height. Area of a Square = Base × Height. Area of a Square = s2 Area of Triangle = ...
area of a rectangle, area of a square, area of triangle
Diffusion Diffusion is movement of anything (atom, ions, molecules) through a thin semi-permeable membrane (cell membrane consists of a lipid bilayer) fro ...
diffusion, ions, atoms, molecules KJGAG
Aggregate states of material Three aggregate states of material are known: solid, liquid and gas. In a solid, constituent particles are closely packed together. As a result, a ...
aggregate states,solid, liquid, gas KJGAG
scale invariance Scale invariance or scale independence is a term used in mathematics, particle physics, and statistical physics, more specifically, statistical mecha ...
scale invariance Institut Equalita
Fractals Fractal is a term coined by the mathematician Benoît Mandelbrot in 1975 (Latin fractus, "broken", from latin frangere, (break into pieces)), whic ...
fractals Institut Equalita
activation energy Activation energy is the value of energy that is needed by the reactants to break molecular bonds, leading to products.
activation energy Pixel
orientation Orientation is the angle between the directions of the two colliding reactant particles.
orientation Pixel
reactants Reactant is a molecule, atom or ion (= In general terms a particle) that combined with another particle of the same or of a different substance gives ...
reactants Pixel
polyaddition chain reaction a reaction that combines alkene-type monomers through the addition of a reactant (an ionic or radical r.) to the double bond, followed by a second a ...
surfactants Surfactant, also called surface-active agent, substance such as a detergent that, when added to a liquid, reduces its surface tension.
surfactants Pixel
cohesion Cohesion is the property that makes molecules attracted to one another. The cohesive forces between liquid molecules are responsible for the phenom ...
cohesion Pixel
surface tension Surface tension is a property of liquids that arises due to the fact that the molecules at the surface of a liquid have a different potential energy ...
surface tension Pixel
redox Redox reactions involve electron transfers; if one substance gains electrons, another substance (or more than one substance) must lose electrons.
redox Pixel
colloidal Mixture comprising two distinct phases, one dispersed, the other continuous
colloidal Pixel
pH The pH is a scale for measuring the acidity or basicity of an aqueous solution.
pH Pixel
fecundation Plant fecundation is the asexuate reproduction by means of fragments of vegetative organs, unlike the sexuate reproduction of animals.
fecundation EuroEd
stamen The stamen (plural Stamina) is the reproductive organ of a flower which produces pollen.
stamen EuroEd
denomenator The denomenator shows how many parts the whole was divided into.
denomenator EuroEd
ecosystem An ecosystem comprises all the plants and animals that live in particular area that support life (ecosphere) and the complex relationship that exists ...
ecosystem EuroEd
cell A cell is the structural, functional and hereditary unit of all living organisms.
cell EuroEd
energy Energy is the quantitative characteristic that must be transferred to an object in order to perform work on, or to heat, the object.
energy EuroEd
species A species is the most basic unit or category of biological classification and comprises individuals which share similar characteristics, have common ...
species EuroEd
work Work is the energy transferred by a force acting through a distance. Work is (thermodynamics) the energy transferred from one system to another by m ...
work EuroEd
Parallel lines

Parallel lines are two lines that are always at the same distance and never touch.

parallel lines EuroEd
denominator The bottom number is the Denominator, it is the number of parts the whole is divided into.
denominator EuroEd
numerator The top number in a fraction is the numerator and shows how many parts were taken from the whole.
numerator EuroEd
An ordinary fraction An ordinary fraction is a pair (a, b) of two natural numbers a and b, with b different by 0. The top number is the numerator and the bottom is the ...
numerator, denominator EuroEd
nucleotide Each nucleotide that makes up a nucleic acid is made up of phosphoric acid, sugar (5-carbon), and nitrogenous base.
nucleotide EuroEd
biochemically codified Biochemical codification is given by the succession of nitrogenous bases from the structures of the nucleotides.
biochemically codified EuroEd
macromolecules Macromolecules are molecule comprising a big number of atoms.
macromolecules EuroEd
Nucleic acids Nucleic acids are macromolecules (consisting of chains of nucleotides) containing the biochemically codified genetic information of a living thing.
Nucleic acids EuroEd
radioactive decay The radioactive decay is the process by which an unstable nucleus loses energy by emitting radiation.
nuclear reaction The nuclear reaction is the process in which two nuclei, or else a nucleus of an atom and a subatomic particle (such as a proton,neutron, or high ene ...
nuclear reaction EuroEd
recipient An individual organism that takes the living tissue, supplied by the donor.
recipient ZAT
donor An individual organism that supplies living tissue to be used in another body, as a person who furnished blood for transfusion or an organ for transp ...
donor ZAT
organ A group of tissues in a living organism that have been adapted to perform a specific function.
organ ZAT
melting The transition from solids to liquids is called melting. The crystalline solids melt at a specific temperature called melting point.
melting ZAT
Amorphous substances The amorphous structure is characterized by the lack of a rigid arrangement of the constituent particles in the substances. They do not have a specif ...
Amorphous substances ZAT
work Mechanical work is a measure of the amount of energy that is transferred from one system to another. This transfer is accomplished by force.
work ZAT
volume of air Air is a mixture of gases. The main ingredients are nitrogen and oxygen.
volume of air ZAT
water vapor Water vapor is a gaseous state of water.
water vapor ZAT
humidity Air humidity is a measure of the amount of water vapor in the air.
humidity ZAT
gas Gas is one of the four aggregate states of a substance, in which the particles are linked by very weak bonds to each other. These particles can be mo ...
gas ZAT
electric field An electrically charged body creates a field in the space around it and is called an electric field. This field cannot be perceived by our senses, bu ...
electric field ZAT
electric charge Electric charge is a property possessed by some of the elementary particles and can be positive or negative. The magnitude of the electric charge of ...
electric charge ZAT
dielectric Dielectric is a substance that conducts poorly or not conducting electricity at all.
dielectric ZAT
vibration Vibrations or oscillatory movements are called movements or changes in the state of bodies characterized by one or another degree of repetition over ...
vibration ZAT
mechanical wave The transmission of vibrations from particle to particle in an elastic medium in space and time resulting in energy transfer. Longitudinal mechanica ...
mechanical wave ZAT
rest The body is at rest (or is stationary) if it does not change its position.
rest ZAT
building particles The constituent particles of a substance are atoms, ions or molecules. They perform complex movements constantly, therefore they have energy.
building particles ZAT
chaotic movement Brownian motion is the thermal motion of micro particles of a solid in a liquid or gaseous medium
chaotic movement ZAT
valence chemical bonds A covalent bond is a chemical bond that is made through common electron pairs belonging to both atoms. Through it, atoms are bonded both in molecules ...
valence chemical bonds ZAT
crystal grid A crystal structure is a type of arrangement of the constituent particles of a solid - atoms, molecules or ions, whereby there is a repeatability of ...
crystal grid ZAT
solid state Solids are called those substances that can keep their shape and volume unchanged for long enough.
solid state ZAT
thermal equilibrium The thermal equilibrium occurs when the temperatures of the two bodies are equalized. Warmer conveys the heat to the colder, and the colder receives ...
thermal equilibrium ZAT
heat Quantity of heat is the change in the internal energy of a thermodynamic system and it equals the work done on it and the amount of heat exchanged wi ...
heat ZAT
temperatures Temperature is physically intrinsic to matter, which is quantified to become familiar with the above and to establish itself. It is assumed to be a l ...
temperatures ZAT
radius A straight line from the center to the circumference of a circle or sphere.
polygon A plane figure with at least three straight sides and angles, and typically five or more.
polygon ZAT
circle A circle is a shape consisting of all points in a plane that are a given distance from a given point, the center; equivalently it is the curve traced ...
circle ZAT
monomers A monomer is a molecule that can be reacted together with other monomer molecules to form a larger polymer chain or three-dimensional network in a pr ...
monomers ZAT
polymer High molecular weight compounds which consist of a large number of repeating atomic groups bonded to each other by chemical bonds. Molecules are call ...
polymer ZAT
parallel Two straight lines are parallel when they are in the same plane but do not intersect, which means that do not have a point in common.
parallel ZAT
the axis of revolution Is the straight line around which the curve rotates.
the axis of revolution ZAT
degree The degree of a polynomial is the highest power of the variable that occurs inside that polynomial.
degree ZAT
terms A term is a monomial which is part of a polynomial.
terms ZAT
atomic number The atomic number or proton number (symbol Z) of a chemical element is the number of protons found in the nucleus of an atom.
atomic number ZAT
chemical elements A chemical element is a species of atom having the same number of protons in their atomic nuclei.
chemical elements ZAT
columns Elements that are placed vertically.
columns ZAT
rows Elements that are placed horizontally.
rows ZAT
multiple A multiple of a number is another number which, divided by the number, leaves no remainder.
multiple ZAT
rectangles A plane figure with four straight sides and four right angles, especially one with unequal adjacent sides, in contrast to a square.
rectangles ZAT
curve A curve (also called a curved line in older texts) is, generally speaking, an object similar to a line but that need not be straight.
curve ZAT
divisor A divisor of an integer n, also called a factor of n, is an integer which evenly divides n without leaving a remainder.
divisor ZAT
powers Is the abbreviation of a product of the same number for itself many times. A power is composed by the base (the number that is multiplied by itself m ...
powers ZAT
volume Volume is the quantity of three-dimensional space enclosed by a closed surface, for example, the space that a substance (solid, liquid, gas, or plasm ...
volume ZAT
Hyperbola When the plane is parallel to the axis of the cone.
Hyperbola ZAT
Parabola When the plane is parallel to the cone generator.
Parabola ZAT
Ellipse When the plane forms an angle 0º < a <180º with the axis, it is neither perpendicular nor parallel to the generator of the cone.
Ellipse ZAT
cone A cone is a solid object that is formed when a right triangle is rotated around one of its two short sides, the cone's axis. The hipothenuse of ...
cone ZAT
circumference A circumference is a curved line where all its points are at the same distance of another one, called center.
circumference ZAT
points A point is an exact position or location on a plane surface.
points ZAT
segment It is the part of a straight line that is limited by two points.
segment ZAT
axis They are two perpendicular straight lines that intersect in a point called the origin of coordinates (0,0). The X axis is the one that runs horizon ...
axis ZAT
literal part The literal part of an algebraic expression is constituted by the letters (variables) and their exponents.
literal part ZAT
coefficients Is the number that multiplies the literal part in a monomial.
coefficients ZAT
similar monomials Two or more monomials are similar if they have the same literal part.
similar monomials ZAT
monomials An algebraic expression consisting of one term.
monomials ZAT
central nervous system The central nervous system is the part of the nervous system that consists of the brain and the spinal cord.
central nervous system EuroEd
catabolism Catabolism includes a series of degradative chemical reactions that break down complex molecules into smaller units, usually releasing energy in the ...
catabolism ZAT
anabolism Anabolism includes a sequence of chemical reactions that constructs or synthesizes macro molecules from smaller units, usually requiring energy in th ...
anabolism ZAT
closed loop A closed loop is a portion of a circuit (which may or may not contain a source),that has no ramifications.
closed loop ZAT
voltages Voltage, electric potential difference, electric pressure or electric tension is the difference in electric potential between two points. The differe ...
voltages ZAT
node A node is any point in a circuit in which 3 or more conductors meet.
node ZAT
neutrons A neutron is an atomic particle that has no electrical charge.
neutrons ZAT
bacteria Bacteria are microscopic, single-celled organisms. Bacteria are a type of biological cell. They constitute a large domain of prokaryotic microorganis ...
bacteria ZAT
phagocytes Phagocytes are cells which have the ability to destroy germs, bacteria and viruses. Phagocytes help the body fight disease.
phagocytes ZAT
germs It is a common term used to describe pathogen bacteria which cause diseases and infections unlike viruses which cause virus infections.
germs ZAT
organism An organism is an individual living thing (plant, animal, microorganism) that can react to stimuli, reproduce, grow, and is characterized by metaboli ...
organism ZAT
elasticity Elasticity is the ability of a body to resist a distorting influence and to return to its original size and shape when that influence or force is rem ...
elasticity ZAT
descendants Descendants (offspring): the individuals of a new generation.
descendants ZAT
genetic information Genetic information is the biochemically codified information, embedded in nucleic acids –DNA and RNA
genetic information ZAT
refraction Refraction is the change in direction of a propagating wave, such as light or sound, in passing from one medium to another in which it has a differen ...
refraction ZAT
binary Binary refers to the process of combining two objects.
binary ZAT
multiplication Multiplication is a mathematical operation performed on a pair of numbers in order to derive a third number called a product. For positive integers, ...
multiplication ZAT
addition The addition of two numbers is the total amount of those values combined.
operation In mathematics, an operation is a calculation from zero or more input values to an output value.
operation ZAT
functional group In organic chemistry, functional groups are specific substituents or moieties within molecules that are responsible for the characteristic chemical r ...
functional group ZAT
insulator Insulator, any of various substances that block or retard the flow of electrical or thermal currents.
insulator ZAT
conductor A conductor is an object or type of material that allows the flow of charge (electrical current) in one or more directions. Materials made of metal a ...
conductor ZAT
acceleration  Acceleration is the rate of change of velocity of an object with respect to time. An object's acceleration is the net result of all forces acting on ...
acceleration  ZAT
pressure Pressure is the force applied perpendicular to the surface of an object per unit area over which that force is distributed.
pressure ZAT
fluid Fluid is a substance that continually deforms (flows) under an applied shear stress, or external force. Fluids are a phase of matter and include liqu ...
fluid ZAT
solvent A solvent is a liquid that dissolves a solute. The solvent is the component of a solution that is present in greater amount. Perhaps the most common ...
solvent ZAT
magnetic field A magnetic field is a vector field that describes the magnetic influence of electric charges in relative motion and magnetized materials.
magnetic field ZAT
angle In plane geometry, an angle is the figure formed by two rays, called the sides of the angle, sharing a common endpoint, called the vertex of the angl ...
angle ZAT
Light rays In physics (and optics), a light ray is an idealized model of light, which is drawn as a straight line.
Light rays ZAT
gravitational force Gravity or gravitation, is a natural phenomenon by which all things with mass or energy—including planets, stars, galaxies, and even light—are br ...
gravitational force ZAT
common ratio A geometric sequence is a group of numbers that is ordered with a specific pattern. The pattern is determined by a certain number that is multiplied ...
common ratio ZAT
geometric sequence A geometric sequence is a sequence of numbers in which the ratio between consecutive terms is constant.
geometric sequence ZAT
electromagnetic attraction The electrical resistance of the force of the interaction between the charges is attractive if the charges have opposite signs and repulsive if like- ...
electromagnetic attraction ZAT
electromagnetism Electromagnetism is a branch of physics involving the study of the electromagnetic force, a type of physical interaction that occurs between electric ...
electromagnetism ZAT
resistance to motion This is the resistance a vehicle faces while attempting to move from a stall condition or while accelerating. This resistance must be overcome by the ...
resistance to motion ZAT
inertia Inertia is the resistance of any physical object to any change in its velocity. This includes changes to the object's speed, or direction of motion. ...
inertia ZAT
constant speed Constant motion refers to any type of motion when either the distance traveled by the object is the same for each second, or the speed of the object ...
constant speed ZAT
carbohydrates A carbohydrate is a biomolecule consisting of carbon (C), hydrogen (H) and oxygen (O) atoms, usually with a hydrogen–oxygen atom ratio of 2:1 (as i ...
carbohydrates ZAT
angular acceleration Angular acceleration is the time rate of change of angular velocity. In three dimensions, it is a pseudo vector. In SI units, it is measured in radia ...
angular acceleration ZAT
linear acceleration A linear force (a force along a straight line), applied to a mass, gives rise to a linear acceleration. Examples of such forces are gravity, viscosit ...
linear acceleration ZAT
neutral atoms An atom that has equal number of protons and electrons is called a neutral atom.
neutral atoms ZAT
electrode An electrode is an electrical conductor used to make contact with a nonmetallic part of a circuit (e.g. a semiconductor, an electrolyte, a vacuum or ...
electrode ZAT
solution The solution is a special type of homogeneous mixture composed of two or more substances.
solution ZAT
chemical process The chemical process is an important phenomenon in chemical industry, which involves various chemical reactions due to which new chemical compounds a ...
chemical process ZAT
electric current Electric current is defined as the rate of flow of negative charges of the conductor. In other words, the continuous flow of electrons in an electric ...
electric current ZAT
helix In mathematics, a spiral is a curve which emanates from a point, moving farther away as it revolves around the point.
helix ZAT
polynucleotide DNA molecule comprises of two polynucleotide chains. They are curved in the form of a double helix. Inside the spiral
polynucleotide ZAT
boiling Boiling is the rapid vaporization of a liquid, which occurs when a liquid is heated to its boiling point, the temperature at which the vapour pressur ...
boiling ZAT
mixture Mixture is a material made up of two or more different substances which are physically combined.
mixture ZAT
physical process A sustained phenomenon or one marked by gradual changes through a series of states.
physical process ZAT
ions An ion is an atom or molecule that has a net electrical charge. Since the charge of the electron (considered negative by convention) is equal ...
ions ZAT
concentration In chemistry, concentration refers to the amount of a substance per defined space. Another definition is that concentration is the ratio of solute in ...
concentration ZAT
electrical conductivity Electrical conductivity is the measure of a material's ability to allow the transport of an electric charge.
electrical conductivity ZAT
mass Mass is both a property of a physical body and a measure of its resistance to acceleration when a net force is applied.
mass ZAT
constant Constant means non-varying. Constant may have two different meanings. It may refer to a fixed and well-defined number or other mathematical object. T ...
constant ZAT
protons A proton is a subatomic particle, symbol p+, with a positive electric charge. One or more protons are present in the nucleus of every atom; they are ...
protons ZAT
angular momentum Angular momentum, property characterizing the rotary inertia of an object or system of objects in motion about an axis that may or may not pass throu ...
angular momentum ZAT
motion In physics, motion is the change in the position of an object over time.
motion ZAT
sample An outcome of a random experiment. When we sample a random variable, we obtain one specific value out of the set of its possible values. That particu ...
sample ZAT
nucleus The central part of an atom, made up of neutrons, protons, and other elementary particles.
nucleus ZAT
orbital Atomic orbitals describe where an electron is likely to be found in an atom.
orbital ZAT
liquid phase Liquid phase (plural liquid phases) (physics) One of the three fundamental structural phases of matter in which the thermal mobility of molecules or ...
liquid phase ZAT
gas phase Gas phase ion formation. The process of converting an atom or molecule into an ion by adding or removing charged particles such as electrons or other ...
gas phase ZAT
random Without order. Not able to be predicted. Happening by chance.
random ZAT
intersection The place (point) where two lines or segments meet.
intersection ZAT
bond Bonds are usually created by a transfer or sharing of one or more electrons.
bond ZAT
ion An electrically charged atom or group of atoms formed by the loss or gain of one or more electrons
ion ZAT
molecules A molecule is an electrically neutral group of two or more atoms held together by chemical bonds.
molecules ZAT
condensation Condensation is the change of the physical state of matter from the gas phase into the liquid phase, and is the reverse of vaporization.
condensation ZAT
electrons The electron is a subatomic particle, symbol e− , whose electric charge is negative one elementary charge. The electron has a mass that is approxim ...
electrons ZAT
metal With the exception of hydrogen, all elements that form positive ions by losing electrons during chemical reactions are called metals.
metal ZAT
energy Energy, in physics, the capacity for doing work.
energy ZAT
ordinate The vertical ("y") value in a pair of coordinates. How far up or down the point is. Always written second in an ordered pair of coordinates such as ( ...
ordinate ZAT
abscissa The horizontal ("x") value in a pair of coordinates. How far along the point is. Always written first in an ordered pair of coordinates such as (12,5 ...
abscissa ZAT
coordinate A set of values that show an exact position. On graphs it is usually a pair of numbers: the first number shows the distance along, and the second num ...
coordinate ZAT
output The range of the function.
output ZAT
input The domain of the function.
input ZAT
alcohol. In chemistry, alcohol is any organic compound in which a hydroxide group (-OH) is bound to a carbon atom, which in turn is bound to other hydrogen an ...
alcohol. ZAT
acids An acid is a substance that gives hydrogen ion H+or a hydronium ion H3O+when dissolved in water.
acids ZAT
reaction A reaction or chemical reaction is a chemical change which forms new substances.
reaction ZAT
electromagnetic waves Electromagnetic waves one of the waves that are propagated by simultaneous periodic variations of electric and magnetic field intensity and that incl ...
electromagnetic waves ZAT
set In mathematics, a set is a collection of distinct objects, considered as an object in its own right.
set ZAT
concentrations Concentration is the ratio of solute in a solution to either solvent or total solution. Concentration usually is expressed in terms of mass per unit ...
concentrations ZAT
equilibrium A condition in which all influences acting cancel each other, so that a static or balanced situation results. In physics, equilibrium results from t ...
equilibrium ZAT
plane A flat, two-dimensional surface that extends infinitely far.
plane ZAT
carboxyl group Carboxylic groups are functional groups with a carbon atom double-bonded to an oxygen atom and single bonded to a hydroxide group.
carboxyl group ZAT
amino group Amino group, in chemistry, functional group that consists of a nitrogen atom attached by single bonds to hydrogen atoms, alkaline groups, aryl groups ...
amino group ZAT
proteins Proteins are macromoleculare substances that consist of simple or complex chains of amino-acids, which include many essential biological compounds of ...
proteins ZAT
cells A cell is the structural, functional and hereditary unit of all living organisms.
cells ZAT
weight A spring scale measures the weight of an object. ... The unit of measurement for weight is that of force, which in the International System of Units ...
weight ZAT
area Is the quantity that expresses the extent of a two-dimensional figure or shape, or planar lamina, in the plane.
area ZAT
force A force is the pulling or pushing effect that something has on something else.
force ZAT
bases. Base is a substance which gives hydroxide ion OH-when dissolved in water.
bases. ZAT
acids  An acid is a substance that gives hydrogen ion H+or a hydronium ion H3O+when dissolved in water.
acids  ZAT
substances Substance theory, an ontological theory positing that a substance is distinct from its properties. Chemical substance, a material with a definite che ...
substances ZAT
intensity The strength of something that can be measured such as light.
intensity ZAT
repulsive forces A force is the pulling or pushing effect that something has on something else.
repulsive forces ZAT
atoms An atom is the smallest constituent unit of ordinary matter that constitutes a chemical element. Every atom is composed of a nucleus and one or more ...
atoms ZAT
electron An electron is a tiny particle of matter that is smaller than an atom and has a negative electrical charge.
electron ZAT
chemical bond A chemical bond is a lasting attraction between atoms, ions or molecules that enables the formation of chemical compounds.
chemical bond ZAT
molecular bond Strong chemical bonds are the intra-molecular forces which hold atoms together in molecules.
molecular bond ZAT
Fermentation The breakdown of carbohydrates (glucose) into cells of microorganisms without the participation of oxygen is called fermentation.   ...
carbohydrates, breakdown of carbohydrates PGAZ
DNA The DNA molecule comprises of two polynucleotide chains. They are curved in the form of a double helix. Inside the spiral are nitrogen bases that ...
DNA, polynucleotide, helix, spiral PGAZ
The physical states of water Water is known to exist in three different states: as a solid (ice), liquid (water) or gas (steam). Water molecules contains one oxygen and two� ...
KJGAG
Magnet

Constant magnets attract various iron objects. For example a key, a needle, a stapler and scissors.

KJGAG
Interaction of electrical charges When two bodies are rubbed, they become electrified An electrified body transfers part of the electrical charge to an unelectric body. Homogeneous ...
KJGAG
Thales and his theorem Thales’s theorem states that if there are two parallel straight lines and they go over an angle in two lines, it gets those lines in the same rat ...
KJGAG
Enzymes Enzymes are macromolecules that helps speed up chemical reactions in the organism‘s body. They break down molecules such like proteins,  carbohy ...
KJGAG
Decimal Places

Decimal notation is the expression of numbers through powers of 10, it is the common method employing nine digits and zero.

decimal places, numbers, digits KJGAG
Random walk & Brownian motion A random walk is a dynamic process determined by stochastic variables. It can be used as a quantitative model for the description of Brownian motio ...
Pixel
Energy levels (quantum jumps) In atomic physics the expression indicates the passage of an electron in one atom from one state of energy to another; the electron jumps from one ...
Pixel
Redox reactions Traffic light is the name of a clock reaction which will spontaneously change color from yellow to red after a gentle shake.  After a more vigoro ...
redox reaction, oxidation Pixel
Mitosis Mitosis is a process of asexual reproduction of eukaryotic cells thanks to which from a single cell 2 genetically identical daughter cells are form ...
Pixel
Iron

Iron is one of the most common metal elements that is extracted from minerals to produce cast iron and subsequently steel.

Pixel
DNA composition The DNA molecule consists of two chains of nucletids. Each nucleotide consists of a pentose sugar, a phosphate group, a nitrogenous base. The nuc ...
Pixel
Dalton’s Law Dalton's law says that when one element combines with another to form different compounds, the masses of the elements stand between them in re ...
law on multiple proportions, Dalton's law, element, compound, ratio Pixel
Acid-base indicators The acid-base indicators, or pH indicators, are organic substances that have the property of assuming different colors below or above a determined ...
PH, acid-base indicators, solution Pixel
Effective collision (The collision theory) A collision between two reactants ( molecules, atoms or ions = In general terms: particles of r.) with the correct orientation and with sufficient ...
collision, reactants, activation energy Pixel
Polymerization process Polymerization: Polymerization of olkenes: polyaddition chain reaction. A collision between two reactants ( molecules, atoms or ions = In ...
polymerization, polymerization of olkenes: poly-addition chain reaction. Pixel
The properties of water

The properties of water: surface tension, the cohesion forces and surfactants.

surface tension, the cohesion forces and surfactants. Pixel
Brownian motion A particle whose dimensions are in the order of the micrometer that is suspended in a fluid is subject to a disorderly movement observable under a ...
diffusion, Brownian motion, colloid, atoms, suspension Pixel
molecular bond nfhuisdhiu fhisudfishisd
molecular bond Connectis
Organ transplantation Surgery in which tissue, parts of an organ or the whole organ is taken from one organism (donor) to be placed with a healing intent in another org ...
transplantation, organ transplant ZAT
Melting of an amorphous substance Amorphous substances are characterized by the absence of strict regularity in the arrangement of their building particles with respect to each oth ...
amorphous substances, melting ZAT
Electrical resistance Electrical resistance is a physical quantity characterizing the ability of materials to resist the electrical current flowing through them. ...
electric resistance, electric current ZAT
Solid aggregate In solids, the building particles are firmly bonded to each other. They are located at close distances and are located in a strictly defined way. ...
solid aggregate ZAT
Kinetic energy Kinetic energy is a quantity that characterizes the movement of bodies. It characterizes the ability of bodies to do work to change their speed. ...
kinetic energy ZAT
Absolute humidity of air Absolute humidity is a physical quantity, showing the mass of water vapor in 1 m³ volume of air. Or is it an analogue of air density. ...
humidity of air, water vapor, volume of air ZAT
Ideal gas In the ideal gas, the forces of interaction between the particles (atoms, molecules) of the gas are neglected. When the temperature of the diluted ...
ideal gas ZAT
Capacitor A capacitor is a device consisting of two electrodes with a dielectric between them. It is intended for temporary storage of electric charge throu ...
electrodes, dielectric, electric charge,electric field , capacitor ZAT
Sound Sound is a longitudinal mechanical wave - the vibration of matter, which is transmitted as a periodic change in pressure (due to compression and d ...
mechanical wave, sound, vibration ZAT
Starting body

The body against which we determine whether a body is in motion or at rest.

starting body, motion, rest ZAT
Diffusion The mutual penetration of substances due to the chaotic movement of their building particles. Diffusion is the mutual penetration of substances in ...
diffusion, chaotic movement, building particles, concentration equalization. ZAT
Solid bodies with crystal grid Substances in solid state are characterized by a crystal grid. The constituent particles in solids are bound by healthy valence chemical bonds. Th ...
solid state, substances, crystal grid, chemical bond ZAT
Heat exchange Heat exchange is a process in which two bodies at different temperatures exchange heat. Higher-temperature body gives off heat to a lower-temperat ...
heat exchange, temperature ZAT
Rectangular Coordinate System A rectangular coordinate system of space consists of three numbers intersecting each other in the coordinate origin O, which are perpendicular to ...
Institut Equalita
Equation An equation is a mathematical expression consisting of two terms connected by the equal sign. The two terms are called left and right sides of the ...
equation Institut Equalita
Rational numbers Rational numbers are obtained by combining the concept of integers with the concept of fractions and decimals. That is, the set of fractions is ex ...
Institut Equalita
Thunderstorm A discharge of the air electricity of the clouds among themselves or against the earth, accompanied by lightning and thunder, usually accompanied ...
Lightning thunder Institut Equalita
Solar system

The solar system is consisting of the sun, the eight planets and their moons, comets, asteroids and meteorites.

Sun, moon, planet, comet, asteroid and meteorite. Institut Equalita
Vector An Euclidean vector, is an entity endowed with a magnitude (the length of the line segment (A, B)) and a direction (the direction from A to B). In ...
vector, segment, direction, force, acceleration ZAT
Parabola The parabola is the geometric location of all points in the plane that are at equal distances from a fixed point F and a fixed line l in the same ...
Conical section, coordinates, axis of symmetry ZAT
Heteropolymers High molecular weight organic compounds made up of the binding of different units arranged in a certain way. The molecules that bind to each other ...
Organic compounds, Polymers, Monomeric units, monomer, polymer, heteropolymer ZAT
Enzymes Enzymes are molecules that catalyze the biochemical processes in the cell. They are highly specific, powerful catalysts, each of which catalyzes a ...
Proteins, Catalysts ZAT
Denaturation and renaturation Denaturation is a process of changing the spatial structure of nucleic acids and proteins under the influence of high temperature, pressure, acids ...
Peptide links, Biomolecules, Spatial structure of proteins ZAT
Central angle in a circle Angle the tip of which coincides with the center O of a circle and its shoulders cross the circle at a point. ...
Circle, center, angle, tip ZAT
ATP (Adenosine triphosphate) Living organisms take energy in two major forms — autotrophic (photosynthetic) organisms take energy in the form of light, and heterotrophic org ...
Macro-grid connections, chemical compound, energy, chemical energy ZAT
A circle circumscribed around a polygon A circle circumscribed around a convex polygon, we call the circle with the center of symmetry at the sides of the polygon and radius the distance ...
Respiratory chain The respiratory chain is the common path through which all the electrons originating from the most diverse nutrients in the cell are transferred t ...
Electrons, aerobes, oxidation, ATP, phosphorylation Institut Equalita
Excitation An act of irritation or stimulation or of responding to a stimulus, the addition of energy, as the excitation of a molecule by absorption of photo ...
nerve cells Institut Equalita
Synapse A synapse is a contact structure for transmitting a chemical or electrical signal from one nerve cell to another nerve cell (interneuronal synapse ...
Nerve cells Institut Equalita
Mitosis Phase in the cell cycle in which the nucleus divides and the DNA is divided. In the subsequent cell division, the genetic material of a cell is di ...
DNA, cell division, cell cycle Institut Equalita
DNA DNA: The deoxyribonucleic acid is a very large, phosphorus- and nitrogen-containing molecule that serves as a carrier of genetic information. ...
dna, genetics Institut Equalita
Enzyme Enzyme, a substance that acts as a catalyst in living organisms, regulating the rate at which chemical reactions proceed without itself being alte ...
enzymes, enzymology Institut Equalita
Forest ecosystem A forest ecosystem describes the community of plants, animals, microbes and all other organisms in interaction with the chemical and physical feat ...
forest, ecosystem Institut Equalita
Cell The cell is a fundamental biological organizational unit from which almost of all known living beings are built. Cells are the smallest units of l ...
Living beings, life Institut Equalita
Brain The portion of the central nervous system that is located within the skull. It functions as a primary receiver, organizer, and distributor of info ...
central nervous system Institut Equalita
Permutation Permutation is the act of arranging the members of a set into a sequence or order, or, if the set is already ordered, rearra ...
Permutation, set RSTS
Density Density can be defined as the property that matter has, whether they are solids, liquids or gases, to be compressed in a given space, the amount o ...
matter, solids, liquids, gases, mass, volume ALPE
Periodic system The periodic system is a tabular disposition of the chemical elements, ordered by their atomic number, electronic configurations and recurrent che ...
tabular, elements, tomic number ALPE
Chemical bond The chemical bond corresponds to the force of attraction that holds together the atoms that are part of a molecule, to achieve stability. ...
force, attraction ALPE
Amount of substance In every amount of a substance, there is a enormously big number on particles,  ions or molecules. In order to simplify calculation with them ...
amount, number, particles ALPE
Ribosomes Ribosomes are machines responsible for the translation of the genetic code of nucleic acids (messenger RNA) into the language of proteins. The rib ...
genetic doe, nucleic acids, RNA, proteins ALPE
Variation The variation of n elements by m elements (m≤n) is called the order of m elements of the given set of n elements. Each of the two variations var ...
variation, set, sample RSTS
Probability (2) Probability is a feature of a random event, and when we create the corresponding mathematical apparatus, we get that this property is described by ...
Probability, random RSTS
Probability Probability is the likelihood or chance of an event occurring. Probability is the measure of the likelihood that an event will occur. ...
Probability RSTS
Position of two lines Intersecting lines, if they intersect at a point. If the angle they form is 900, they are perpendicular. Coincident lines, if they contain the ...
Line-line intersection, Euclidean geometry, intersection RSTS
Line-plane intersection In analytic geometry, the intersection of a line and a plane in three-dimensional space can be the empty set, a point, or a ...
Intersection, plane, three-dimensional space RSTS
Function A function is like a machine that has an input and an output And the output is related somehow to the input. A f ...
Function, input, output RSTS
Graph function If points are put in a coordinate plane whose abscissa (x) is an argument for the function, but ordinate (y) is the corresponding value of the fun ...
coordinate, abscis, ordinate RSTS
Combinations Given a set of n different elements or objects. Select a subset of r elements out of n. Such selection is called the combination. A combination is ...
Combinations, set RSTS
Central symmetry 1. A central symmetry, centered at point O, is a movement of the plane where every point P of the plane has to map to ano ...
Central symmetry, plane RSTS
The main quantum number As it increases, the orbital becomes larger and the electron spends more time farther from the nucleus. As n increases, the electron is also at a ...
Orbital, nucleus RSTS
Photoelectric effect Photoelectric effect happens when electrons are emitted from matter such as metals. It takes a certain amount of energy for an electron to escap ...
Electrons,metals,energy RSTS
Solid of revolution A solid of revolution is a solid figure obtained by rotating a plane curve around some straight line (the axis of revolution) that lies on the sam ...
figure, plane ALPE
Cartesian coordinate system It is a reference system formed by two axis perpendicular to each other that are cut at a point called the origin of coordinates. Thus, each point ...
axis, coordinates ALPE
Emission Emission – the flow of electromagnetic waves or the ‘throwing out’ particles (mostly electrons) from different matters. ...
Electromagnetic waves RSTS
Matrix Is a rectangular array of numbers, symbols, or expressions, arranged in rows and columns. The individual items are called elements or entries. ...
array, rows, columns ALPE
Atmospheric pressure Atmospheric pressure is the force per unit area exerted into a surface by the weight of air above that surface in the atmosphere of Earth (or that ...
Force, area, weight RSTS
Integral An integral is a generalization of the sum of infinite summands, infinitely small. In the case of the defined integral, this sum of infinite infin ...
sum, infinite, summands ALPE
Straight lines that are secant or cross A straight line is secant to another when it has non-empty intersection with it. Two straight lines cross when they are not parallel and they are ...
secant, intersection ALPE
Absorption Light passing through an optical system can be attenuated by absorption and by scattering. Light apsorption is a physical process during which the ...
intensity RSTS
Chord and arc of a circumference A chord is a segment that joins two points in a circumference. An arc is each one of the parts of the circumference in which it is divided by two ...
segment, points ALPE
Chemical equilibrium In a chemical reaction, chemical equilibrium is the state in which both reactants and products are present in concentrations, which have no fur ...
Equilibrium, concentrations, chemical equilibrium RSTS
Sublimation Sublimation is the transition of a substance directly from the solid to the gas phase, without passing through the intermediate liquid phase.   ...
Substance, sublimation, gas phase, liguid phase RSTS
Isomery In chemistry, isomers are ions or molecules with identical formulas but distinct structures. Isomers do not necessarily share similar propert ...
Isomery, ions, molecule RSTS
Ionic bond The definition of ionic bond is when a positively charged ion forms a bond with a negatively charged ions and one atom transfers electrons ...
Ion, bond, atom, electrons RSTS
Indicator Chemical indicator - any substance that gives a visible sign, usually by a colour change, of the presence or absence of a threshold concentration ...
Indicators, concentration, substance RSTS
Hydrolysis Hydrolysis, the opposite of condensation, is a chemical reaction in which water breaks down another compound and changes its makeup. Most instances ...
Reaction, condensation, molecules, acid, base RSTS
Esterification Esterification is chemical reaction that forms at least one ester (= a type of compound produced by reaction between acids and alcohols). Esters a ...
Reaction, ester, acid, alcohols RSTS
Amino acids Amino acid - any of a large number of compounds found in living cells that contain carbon, oxygen, hydrogen, and nitrogen, and join together to fo ...
Amino acids, cell, protein, amino group, carboxyl group RSTS
Acid / base indicator Acid - base indicators (also known as pH indicators) are substances which change color with pH. They are usually weak acids or bases. ...
Indicators, substance, acid, base RSTS
A covalent bond A covalent bond, also called a molecular bond, is a chemical bond that involves the sharing of electron pairs between atoms. These electron pairs ...
molecular bond, chemical bond, electron, atom, repulsive forces RSTS
An electron shell (2) An electron shell is a grouping of electrons surrounding the nucleus of an atom.   ...
electron shell, atom, nucleus, electron EuroEd
An electron shell An electron shell is a grouping of electrons surrounding the nucleus of an atom.   ...
electron, electron shells, nucleus, atom EuroEd
Proton Neutron Electron A proton is an atomic particle that has a positive electrical charge. A neutron is very small piece of matter, i.e. substance, that carries no ...
charge EuroEd
Catalyst (2) A catalyst is a substance that enables a chemical reaction to proceed at a usually faster rate or under different conditions (as at a lower temper ...
chemical reaction, catalyst EuroEd
Catalyst A catalyst is a substance that enables a chemical reaction to proceed at a usually faster rate or under different conditions (as at a lower temper ...
chemical reaction, catalyst EuroEd
Isotopes (2) Isotopes are atoms that have the same number of protons and electrons but different numbers of neutrons and therefore have different physical prop ...
Isotopes, atoms, protons, electrons, neutrons EuroEd
Isotopes Isotopes are atoms that have the same number of protons and electrons but different numbers of neutrons and therefore have different physical prop ...
Isotopes, atoms, protons, electrons, neutrons EuroEd
Isotopes (3) An isotope is the form of an atom which has a different atomic weight from other forms of the same atom, but the same chemical structure (two or m ...
Isotopes, atoms, protons, electrons, neutrons EuroEd
Ordinary fractions An ordinary fraction is a pair (a, b) of two natural numbers a and b, with b different by 0. The ordinary fraction is written a/b where a is the n ...
ordinary fraction, numerator, denominator EuroEd
Associativity An operation on a set of elements giving an equivalent expression when elements are grouped without change of order, as (a + b) + c = a + (b + c) ...
addition, multiplication, associative law, associativity, integer EuroEd
Commutativity The "Commutative Laws" say one can swap numbers over and still get the same answer  when it  adds (a + b  =  b + a) or multiplies  (a × b  ...
commutative law, commutativity, addition, multiplication EuroEd
Parallel lines Parallel lines are two lines that are always at the same distance and never touch.   ...
parallel lines EuroEd
Diffusion

Diffusion is the net movement of molecules or atoms from a region of higher concentration

diffusion, atom, molecule EuroEd
Inclined plane An inclined plane, also known as a ramp, is a flat supporting surface tilted at an angle, with one end higher than the other, used as an aid for r ...
inclined plane, ramp, angle EuroEd
The First Law of Thermodynamics Also known as the Law of Conservation of Energy, the First Law of Thermodynamics states that, “energy cannot be created or destroyed in an isola ...
energy EuroEd
Kirchhoff's Loop Law (Voltage Rule) The directed sum of the voltages around any closed loop is zero. Vrise-Vdrop = 0. V4-V3-V2-V1=0.    ...
closed loop, voltage, Kirchhoff's Loop Law, Voltage Rule EuroEd
Kirchhoff's first law (junction law) The numeric value of the currents that enter the node is equal to that of the currents that exit the node. A node is any point in a circuit in ...
node, Kirchhoff's first law, junction law EuroEd
Hooke's Law Hooke’s Law states that, “the strain in a solid is proportional to the applied stress within the elastic limit of that solid.” The law and f ...
elasticity, hooke's law, solids EuroEd
Power A physical quantity that is determined by the rate of work transferred per unit time. Unit of measure  or W (1Joul per second or 1Wat ...
work EuroEd
Nuclear fission Nuclear fission is either a  nuclear reaction or a radioactive decay process in which the nucleus  of an atom splits into smaller parts. The fis ...
Force A force is any interaction that, when unopposed, will change the motion of an object.A force is a push or pull upon an object resulting from the o ...
force EuroEd
Dispersion of light The dispersion of light is the phenomenon of splitting of a beam of white light into its seven constituent colours (i.e. violet, indigo, blue, gre ...
dispersion, refraction EuroEd
Tissue (2) A tissue is an aggregate (set) of interdependent cells in an organism that have similar origin, shape, structure and function. ...
cell EuroEd
Tissue A tissue is an aggregate (set) of interdependent cells in an organism that have similar origin, shape, structure and function.   ...
cell EuroEd
Pollination (3) Pollination is the transfer (natural or artificial) of pollen of the stamen to the stigma of another plant to produce fecundation.   ...
stamen, fecundation EuroEd
Nerve The nerve conducts nerve impulses in organism. It is a category of filamentous bands of  nervous tissues that connects parts of the nervous syste ...
nervous tissue, central nervous system EuroEd
Heredity Heredity is individuals’ characteristic to acquire the genetic information (nucleic acids) of their parents and to pass it on to their descendan ...
heredity, descendant, offspring, nucleic acids EuroEd
Nucleic acids DNA (2) Nucleic acids are macromolecules (consisting of chains of nucleotides) containing the biochemically codified genetic information of a living thing ...
nucleic acids, macromolecules, biochemically codified, nucleotide EuroEd
Nucleic acids DNA Nucleic acids are macromolecules (consisting of chains of nucleotides) containing the biochemically codified genetic information of a living thing ...
nucleic acids, macromolecules, biochemically codified, nucleotide EuroEd
Metabolism Metabolism is the process involving a set of constructive (anabolism) or distructive (catabolism) chemical reactions that modifies a molecule into ...
metabolism, energy, anabolism, catabolism EuroEd
Trophic chain Trophic chain is a series of organisms interrelated in their feeding habits in an ecosystem in which each species is the food of the next member o ...
ecosystem EuroEd
Kirchhoff's Junction Law The law states that sum of the currents coming into a junction has to equal the sum of the currents going out. Essentially, it is an application o ...
node, Kirchhoff's first law, junction law EuroEd
Symbiosis Symbiosis is interaction between two different organisms living in close physical association, typically to the advantage of both. It is a mutuall ...
species EuroEd
Pollination (2) Pollination is the transfer (natural or artificial) of pollen of the stamen to the stigma of another plant to produce fecundation.   ...
stamen, fecundation EuroEd
Pollination Pollination is the transfer (natural or artificial) of pollen of the stamen to the stigma of another plant to produce fecundation.   ...
stamen, fecundation EuroEd
IMMUNITY (2)

It is the process by which phagocytes engulf and break down bacteria or particles.

immunity, toxic substances, germs, pathogen organisms, bacteria, phagocytes EuroEd
Immunity It is the condition of the vegetal, animal or human organism to resist a particular disease especially by preventing the development of a pathogen ...
immunity, toxic substances, germs, pathogen organisms EuroEd
Cations Cations are atoms or radicals (groups of atoms), that have lost electrons. Since they now have more protons than electrons, cations have a positiv ...
cations, atoms, electrons, protons PGAZ
Anions Anions are atoms or radicals (groups of atoms), that have gained electrons. Since they now have more electrons than protons, anions have a negativ ...
atom, proton, electron PGAZ
Substitution reaction Substitution reaction (also known as single displacement reaction or single substitution reaction) is a chemical reaction during which one functio ...
chemical reaction, functional group, substitution reaction PGAZ
Diffusion Diffusion is the movement of a substance from an area of high concentration to an area of low concentration. Diffusion happens in liquids and ...
diffusion, ions, molecules, concentration PGAZ
FIRST PRINCIPLE OF THE MECHANICS An object keeps its state as long as there is no force which acts upon it. The state of the body can be either stationary or moving with constant ...
constant speed, inertia, mechanics PGAZ
SECOND PRINCIPLE OF THE MECHANICS For a given body with mass, the resultant force F [N] acting on the body is equal with the product between the mass m [kg] and the body’s accele ...
second principle of mechanics, mass, acceleration, force PGAZ
Conductors, insulators, and semiconductors Materials are classified as conductors, insulators, or semiconductors according to their electric conductivity. A conductor is an object or ty ...
conductor, insulator, semiconductor, electrical conductivity PGAZ
A spring pendulum A spring pendulum (also called elastic pendulum or swinging spring) is a physical system where a piece of mass is connected to a spring so that th ...
motion, mass, spring pendulum, angular momentum PGAZ
Pascal's principle Pascal's or the principle of transmission of fluid-pressure  is a principle in fluid mechanics given by Blaise Pascal that states that a pres ...
fluid, pressure, pascal's principle PGAZ
Electric circuit (2) Electric circuit, path for transmitting electric current. An electric circuit includes a device that gives energy to the charged particles constit ...
electric circuit, electric current PGAZ
Electric circuit Electric circuit, path for transmitting electric current. An electric circuit includes a device that gives energy to the charged particles constit ...
electric circuit, electric current PGAZ
Equilibrium Equilibrium, in physics, the condition of a system when neither its state of motion nor its internal energy state tends to change with time. A sim ...
force, linear acceleration, angular acceleration, equilibrium PGAZ
Electromagnet Electromagnet, device consisting of a core of magnetic material surrounded by a coil through which an electric current is passed to magnetize the ...
electric current, electromagnet PGAZ
Pulley Pulley, in mechanics, a wheel that carries a flexible rope, cord, cable, chain, or belt on its rim. Pulleys are used singly or in combination to t ...
energy, motion, mechanics, pulley PGAZ
Magnet Magnet, any material capable of attracting iron and producing a magnetic field outside itself. By the end of the 19th century all the known elemen ...
magnet, magnetic field PGAZ
Semiconductors Semiconductor, any of a class of crystalline solids intermediate in electrical conductivity between a conductor and an insulator. Semiconductors a ...
conductor, insulator, semiconductor PGAZ
Light refraction Light rays change direction when they reflect off a surface, move from one transparent medium into another, or travel through a medium whose compo ...
refraction, light rays, angle, PGAZ
Magnetic effect of electric current The electricity and magnetism are linked to each other and it is proved when the electric current passes through the copper wire, it produces a ma ...
magnet, magnetic field, electric current PGAZ
Balancing a rigid body A simple mechanical body is said to be in equilibrium if it experiences neither linear acceleration nor angular acceleration; unless it is disturb ...
equilibrium, balance of a body, motion, linear acceleration, angular acceleration PGAZ
Center of mass The center of mass is a position defined relative to an object or system of objects. It is the average position of all the parts of the system, we ...
center of mass, mass PGAZ
Electric circuits Electric circuit, path for transmitting electric current. An electric circuit includes a device that gives energy to the charged particles constit ...
electric circuit, electric current PGAZ
Chemical reactions. Signs of chemical reactions Chemical reactions are the processes by which chemicals interact to form new chemicals with different compositions. Simply stated, a chemical reac ...
chemical reaction PGAZ
Electrolytes and conduct electricity electrolytes Electrolytes are composed of free moving Charged Particles, i.e. ions. When a pd is applied across the electrolytes, the positive ions move toward ...
ions, electrons, neutral atoms, conductivity PGAZ
Distillation Distillation is the physical process of separating the components or substances from a liquid mixture by using selective boiling and condensation. ...
distillation, physical process, boiling, condensation, concentration PGAZ
Electrolytes, Battery An electrolyte is a substance that produces an electrically conducting solution when dissolved in a polar solvent, such as water. The dissolved el ...
ions, cations, anions, electric current, solution, electrode PGAZ
Electrolysis Electrolysis is the chemical process of using an electrical current to stimulate non-spontaneous reactions. A non-spontaneous reaction is one t ...
Electrolysis, chemical process, electrical current, non-spontaneous reactions. PGAZ
Similar figures Two geometrical objects are called similar if they both have the same shape,or one has the same shape as the mirror image of the other. More preci ...
similar figures, mirror image PGAZ
Geometric progression Geometric progression, also known as a geometric sequence, is a sequence of numbers where each term after the first is found by multiplying t ...
geometric sequence, common ratio PGAZ
Arithmetic progression Arithmetic progression (AP) or arithmetic sequence is a sequence of numbers such that the difference between the consecutive terms is const ...
arithmetic progression, constant PGAZ
Permutation Permutation is the act of arranging the members of a set into a sequence or order, or, if the set is already ordered, rearranging (reord ...
permutation, rearranging PGAZ
Axis of symmetry

Any of one or more lines about which a geometric figure is symmetric.

axis of symmetry, geometric figure PGAZ
Acid / base indicator Acid - Base indicators (also known as pH indicators) are substances which change colour with pH. They are usually weak acids or bases, which when ...
acid, bases, ions PGAZ
Osmosis Osmosis is the spontaneous net movement of solvent molecules through a selectively permeable membrane into a region of higher solute concentration ...
Osmosis, solvent, molecule, solute concentration PGAZ
Diffusion Diffusion is the movement of a substance from an area of high concentration to an area of low concentration. Diffusion happens in liquids and ...
diffusion, ions, molecules, concentration PGAZ
LAW OF ARCHIMEDES Archimedes' principle states that: If a solid body floats or is submerged in a liquid - the liquid exerts an upward thrust force - a buoya ...
law of Archimedes, gravitational forms PGAZ
FIRST PRINCIPLE OF THE MECHANICS An object keeps its state as long as there is no force which acts upon it. The state of the body can be either stationary or moving with constant ...
constant speed, inertia, mechanics PGAZ
Friction Friction is the resistance to motion of one object moving relative to another. It is not a fundamental force, like gravity or electromagnetism. In ...
resistance to motion, electromagnetism PGAZ
Friction Friction is the resistance to motion of one object moving relative to another. It is not a fundamental force, like gravity or electromagnetism. In ...
electromagnetism, electromagnetic attraction, resistance to motion PGAZ
THIRD PRINCIPLE OF THE MECHANICS (2) If a given body exerts a force on a second body, the second body will exert in the same time a force equal in magnitude and opposite in direction ...
force, principle of mechanics, first principle of mechanics, second principle of mechanics, third principle of mechanics PGAZ
THIRD PRINCIPLE OF THE MECHANICS If a given body exerts a force on a second body, the second body will exert in the same time a force equal in magnitude and opposite in direction ...
force, first principle of mechanics, second principle of mechanics, third principle of mechanics PGAZ
Conic sections Conic sections are flat curves obtained by the intersection of a cone and a plane. The angle that forms the plane and the axis of the cone compare ...
curves, intersection, cone, plane ALPE
Square root of a number The square root of a real nonnegative number x is the real number that, multiplied by itself (or equivalent, raised to the second power), gives th ...
nonnegative, exact, perfect ALPE
Prime number

Is a number that only has two factors, 1 and the number itself. If a number has more than two factors, it is called composed number.

number, factors ALPE
Least common multiple (lcm) The least common multiple of two or more positive integers is the lowest positive integer that is multiple of all of them. ...
integer, lowest, multiple ALPE
Highest common factor (hcf)

The highest common factor of two or more positive integers is the greatest possible divisor of all of them.

integer, greatest, divisor ALPE
Factorization The factorization or decomposition of a number in prime factors is the process of decomposing the number as a product of prime numbers and powers ...
decomposition, prime number, unique ALPE
Addition of monomials We can add two monomials as long as they are similar monomials. In order to do the operation we will add the coefficients of each monomial and we ...
monomial, coefficients ALPE
Polynomial A polynomial is an algebraic expression formed by the addition or subtraction of several non-similar monomials, called terms of the polynomial. Th ...