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Matter

Science

Matter Chapter Video

Matter Chapter Video

atom

the smallest particle of an element
atom Simple Definition

boiling point

the temperature at which a liquid boils
boiling point Simple Definition

change of state

a physical change of matter between solid, liquid, and gas
change of state Simple Definition

chemical property

a property that is not visible until a substance undergoes a chemical reaction, like solubility
chemical property Simple Definition

compound

the substance made when atoms from two or more elements combine chemically
compound Simple Definition

condensation

the process of a gas changing into a liquid
condensation Simple Definition

corrosion

the gradual wearing away of a metal through chemical reactions
corrosion Simple Definition

density

an object’s mass per unit volume
density Simple Definition

electron

a negatively charged particle outside the nucleus of an atom
electron Simple Definition

element

a substance made of one type of atom that cannot be broken down chemically
element Simple Definition

evaporation

the top of liquid changing into a gas
evaporation Simple Definition

freezing point

the temperature at which a liquid changes to a solid
freezing point Simple Definition

mass

the amount of matter in an object
mass Simple Definition

matter

anything that has volume and mass
matter Simple Definition

melting point

the temperature at which a solid changes into a liquid
melting point Simple Definition

metal

an element that is a good conductor of heat and electricity
metal Simple Definition

mixture

a combination of substances that keep their individual properties
mixture Simple Definition

molecule

a group of atoms held together by bonds
molecule Simple Definition

neutron

an uncharged particle in the nucleus of an atom
neutron Simple Definition

nucleus atom

the center of an atom
nucleus atom Simple Definition

periodic table

a chart of all the elements, arranged by their physical and chemical properties
periodic table Simple Definition

physical property

a property of a substance we can observe without changing its identity, like color or hardness
physical property Simple Definition

proton

a particle with a positive charge in an atom’s nucleus
proton Simple Definition

solution

a mixture of evenly distributed substances
solution Simple Definition

sublimation

the change of state from a solid directly to a gas
sublimation Simple Definition

volume

the amount of space an object takes up
volume Simple Definition

weight

measure of the force of gravity on an object
weight Simple Definition

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