Investigation 4 Matter Vocabulary

Front

kinetic energy

Back

Energy associated with moving objects.

Front

Melting

Back

The phase change in which a solid turns into a liquid.

Front

System

Back

A group of objects that function together as one unit; also, the set of related objects under study or consideration.

Front

melting point

Back

The temperature at which a solid turns into a liquid.

Front

evaporation (evaporate)

Back

To change from a liquid to a gas at or below the boiling point.

Front

thermal energy

Back

A form of kinetic energy associated with molecules in motion.

Front

Sublimation

Back

The process by which a solid turns directly into a gas, skipping the liquid phase.

Front

Gas

Back

A state (or phase) of matter in which a substance has no definite shape or volume.

Front

Boiling

Back

The process by which a liquid turns into a gas at its boiling point.

Front

liquid

Back

A state (or phase) of matter in which a substance has a definite volume but no definite shape.