Unit 4- Matter & Atoms Vocabulary Spring 2025

Front

Energy in the form of heat.

Back

thermal energy

Front

The change of state from a gas to a liquid

Back

condensation

Front

Matter consisting of positively and negatively charged particles.

Back

plasma

Front

The hotness or coldness of a substance so as to explain the direction of heat flow as heat flows from hotter objects to cooler objects in an attempt to reach equilibrium. A measure of the average kinetic energy of all the particles in an object.

Back

temperature

Front

Amount of space occupied by an object.

Back

volume

Front

energy of motion

Back

kinetic energy

Front

A change from one state of matter (e.g. solid) to another state of matter (e.g. gas).

Back

phase change

Front

The phase change from a liquid to a solid.

Back

freezing

Front

A phase that has a definite volume but takes the shape of its container.

Back

liquid

Front

The phase change from a solid to a liquid.

Back

melting