States of Matter and Phase Changes

Front

What are the three states of matter?

Back

Solids, Liquids, and Gases

Front

How do molecules move in solids?

Back

Molecules in solids vibrate in place and are closely packed.

Front

How do molecules move in liquids?

Back

Molecules in liquids are close together but can move past each other.

Front

How do molecules move in gases?

Back

Molecules in gases are far apart and move freely.

Front

What are the basic phase changes?

Back

Freezing, Melting, Boiling, Condensing.

Front

What happens to molecules during freezing?

Back

Molecules lose energy and become more ordered.

Front

What happens to molecules during melting?

Back

Molecules gain energy and become less ordered.

Front

What happens to temperature during a phase change?

Back

Temperature remains constant during a phase change.

Front

What is the freezing point of water?

Back

0 degrees Celsius (32 degrees Fahrenheit).

Front

What is the boiling point of water?

Back

100 degrees Celsius (212 degrees Fahrenheit).