PHASE CHANGES

What are the characteristics of a solid?

• Solids do not have a definite shape but have a definite volume

• Solids have a definite shape and no definite volume

• Solids do not have a definite shape and no definite volume

• Solids have a definite shape and definite volume

When heat is added to a liquid, what occurs?

• Liquid molecules begin to condense to form a solid.

• Liquid molecules are being slowed down to become a gas.

• Liquid molecules speed up and begin to spread out to become a gas.

• Liquid molecules begin to slow down to become a solid.

Tags

NGSS.MS-PS1-4

Which of the following is an example of a liquid (select ALL that apply).

• tree

• ice

• water

• oxygen

• oil

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

• evaporation
• precipitation
• condensation
• sublimation

Tags

NGSS.MS-PS1-4

NGSS.MS-ESS2-4

2. A change of state from a liquid to a solid is called....

• Melting
• Freezing
• Evaporation

Tags

NGSS.MS-PS1-4

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

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

Tags

NGSS.MS-PS1-4

Melting is ...

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

Tags

NGSS.MS-PS1-4

NGSS.MS-PS3-4

Freezing is...

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

Tags

NGSS.MS-PS1-4

NGSS.MS-PS3-5

Boiling is ...

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

Tags

NGSS.MS-PS1-4

NGSS.MS-PS3-4