Mosa Mack Matter 1

Front

What are the three states of matter?

Back

Solid, Liquid, Gas.

Front

What is the characteristic of molecules in a solid?

Back

Molecules are closely packed together and vibrate in place.

Front

What happens to molecules in a liquid?

Back

Molecules are close together but can move around each other.

Front

What occurs to molecules in a gas?

Back

Molecules are far apart and move freely.

Front

What is required for a solid to change into a liquid?

Back

Heat energy is required to overcome the forces holding the molecules together.

Front

What is the process called when a liquid turns into a gas?

Back

Evaporation.

Front

What is the process called when a gas turns into a liquid?

Back

Condensation.

Front

What happens to the temperature of a substance during a phase change?

Back

The temperature remains constant during a phase change.

Front

What is the term for the amount of energy needed to change a substance from solid to liquid?

Back

Heat of fusion.

Front

What is the term for the amount of energy needed to change a substance from liquid to gas?

Back

Heat of vaporization.