phase changes

What is the phase change of a solid to a liquid?

• freezing

• melting

• boiling

• condensation

Tags

NGSS.MS-PS1-4

NGSS.MS-PS3-4

5. What is it called when a solid turns directly into a gas?

• Sublimation
• Condensation
• Liquid

Tags

NGSS.MS-PS1-4

NGSS.MS-PS3-4

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

• True
• False

Tags

NGSS.MS-PS1-4

NGSS.MS-PS3-4

Change from gas to liquid...

• condensation
• evaporation
• expansion
• movement

Tags

NGSS.MS-PS1-4

Change from Liquid to Solid is called ...

• fusion

• Freezing

• sublimation

• evaporation

Tags

NGSS.MS-PS1-4

NGSS.MS-PS3-4

What happens to particles when energy is added (heated)?

• They speed up and spread out

• They slow down and compress

• They stop moving

• They move closer together and speed up

Tags

NGSS.MS-PS1-4

In a solid, the particles

• vibrate in place
• slide past one another
• overcome the strong attraction

Molecules are closest together in a 

• Solid
• Liquid
• Gas

Tags

NGSS.MS-PS1-4

You have dropped your popsicle and are watching it become a LIQUID. Which answer BEST explains what PHASE CHANGE has occurred AND how the molecule MOVEMENT has changed?

• The PHASE CHANGE that has occurred is CONDENSATION and the molecule MOVEMENT has become FASTER.

• The PHASE CHANGE that has occurred is EVAPORATION and the molecule MOVEMENT has become SLOWER.

• The PHASE CHANGE that has occurred is MELTNG and the molecule MOVEMENT has become FASTER.

Tags

NGSS.MS-PS1-4

What is an example of evaporation?

• Water boiling
• Water turning into ice
• Chocolate bar turning into liquid chocolate
• Fog forming on a mirror

Tags

NGSS.MS-PS1-4