Unit 3 Phase Change Vocab

Front

Smallest unit of matter

Back

atom

Front

Two or more atoms bonded together

Back

molecule

Front

Ability to make things move or change

Back

energy

Front

Energy of a moving object

Back

Kinetic energy

Front

Energy released as heat, measured by temperature.

Back

thermal energy

Front

Measure of how hot or cold something is

Back

temperature

Front

Different form/state of the same substance

Back

Phase

Front

A state of matter with densely packed molecules and a definite shape; molecules vibrate in place.

Back

solid

Front

A state of matter with no fixed shape, taking the shape of its container; molecules are loosely packed and slide past each other.

Back

liquid

Front

A state of matter where molecules move freely and have no definite shape, filling the entire container.

Back

gas