Matter

Matter

anything that takes up space and has mass

Mass

the amount of matter in an object

Atom

a tiny building block of matter

Molecule

A group of atoms bonded together

Volume

The amount of space an object takes up

Weight

The force of gravity on an object

Density

how close together the molecules of a substance are

Temperature

A measure of the energy of motion of the particles in matter

Solid

A state of matter that has a definite shape and a definite volume

Liquid

A state of matter that has no definite shape but has a definite volume.

Gas

A state of matter with no definite shape or volume

Evaporation

The change of a substance from a liquid to a gas

Condensation

The change of substance from a gas to a liquid

Physical change

A change in the form or appearance of matter that does not change it into a new substance.

Chemical change

A change that creates a different kind of matter

Conservation of Mass

mass cannot be created or destroyed in ordinary chemical and physical changes

Mixture

A combination of two or more substances in which the substances keep their identities

Solution

A mixture that has the same composition throughout