Unit 2.1 Phase Changes

Unit 2.1
Phase Changes

Multiple Choice

Phase change going from Liquid to Solid...

• Melting

• Freezing

• Condensation

• Sublimation

Multiple Choice

The phase change from water vapor to liquid water is known as...

• evaporation
• precipitation
• condensation
• sublimation

Multiple Choice

7. All phase changes (changing states) requires energy to be added or taken away.

• True
• False

Multiple Choice

What happens to particles when they are heated?

• They speed up and spread out
• They slow down and compress
• They stop moving
• They move closer together and speed up

Multiple Choice

All changes in the state of matter of a substance requires

• vibration
• water
• permission
• energy

Multiple Choice

How are solids different from liquids?

• particles in solids are moving freely around each other.
• particles in solids have no motion.
• particles in solids are vibrating in place.
• particles in solids have more motion than in liquids

Multiple Choice

What is sublimation?

• phase change between solid and liquid
• pahse change from gas to solid
• phase change from solid to gas
• phase change from solid to solid

Multiple Choice

Boiling is ...

• liquid to gas
• gas to solid
• gas to liquid
• solid to liquid

Multiple Choice

Melting is ...

• liquid to solid
• solid to liquid
• solid to gas
• gas to liquid

Multiple Choice

Freezing is...

• Solid to gas
• Liquid to solid
• Gas to solid
• Liquid to gas