States of Matter and Phase Changes

Front

What is a liquid?

Back

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

Front

What happens to a solid when heat is taken away?

Back

It remains in the solid state but becomes cooler as the molecules slow down.

Front

What happens to a gas when heat is added?

Back

It remains in the gas state but becomes hotter as the molecules speed up.

Front

What occurs when heat is added to a liquid?

Back

The liquid evaporates into a gas and the molecules speed up.

Front

How do particles behave in a solid?

Back

Particles vibrate in place.

Front

What is the definition of matter?

Back

Anything that has mass and takes up space.

Front

What is a solid?

Back

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

Front

What is a gas?

Back

A state of matter that has no definite shape or volume.

Front

What is phase change?

Back

The transition of matter from one state to another, such as solid to liquid or liquid to gas.

Front

What is melting?

Back

The process of a solid turning into a liquid when heat is added.