Phase Change 8th Grade

Phase change going from Liquid to Solid...

• Melting

• Freezing

• Condensation

• Sublimation

Phase change going from a Gas to a Liquid...

• Sublimation

• Deposition

• Ionization

• Condensation

Phase change going from a Solid to a Gas...

• Deposition

• Sublimation

• Condensation

• Recombination

Phase change going from a Solid to a Liquid...

• Freezing

• Condensation

• Melting

• Sublimation

Phase change going from a Gas to a Solid...

• Deposition

• Sublimation

• Condensation

• Vaporization

Is the substance gaining or losing energy?

• Gaining

• Losing

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

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

• evaporation
• precipitation
• condensation
• sublimation

The graph shows a cooling curve for an unknown substance.  What is happening during segment DE?

• boiling
• condensation
• freezing
• melting

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

• True
• False