NGSS.MS-PS1-4

When molten  material is cooled in the mantle it becomes

• more dense
• less dense 

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NGSS.MS-PS1-4

In which state of matter are molecules moving the slowest?

• solid
• liquid
• gas
• all of the above

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NGSS.MS-PS1-4

When the temperature of matter increases the particles...

• speed up and move closer
• speed up and move farther apart
• slow down and move closer together
• slow down and move farther apart

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NGSS.MS-PS1-4

As water in a freezer turns into ice,

• the water absorbs energy from the air in the freezer.
• the water absorbs the coldness from the air in the freezer.
• the freezer air absorbs heat from the water.
• the water neither absorbs nor releases energy.

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NGSS.MS-PS1-4

At approximately what temperature does the solubility of sodium chloride, NaCl, match the solubility of potassium dichromate, K₂Cr₂O₇?

• 60 ºC
• 30 ºC
• 50 ºC
• 83 ºC

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NGSS.MS-PS1-4

 The melting point of water is 0 °C (32 °F).  
The freezing point of water is the same as the melting point which is 0 °C (32 °F). 

• Fact
• Theory

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NGSS.MS-PS1-4

Any change in the state of matter of a substance is a...

• Physical Change
• Chemical Change

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NGSS.MS-PS1-4

If a chemical reaction is EXOTHERMIC, the temperature would....

• Stay the same
• Increase
• Decrease

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NGSS.MS-PS1-4

When the temperature of a gas decreases at a constant volume, its

• pressure decreases

• mass increases

• particles speed up

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NGSS.MS-PS1-4

Charles's Law shows the relationship between (choose two)

• density

• volume

• temperature

• mass

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NGSS.MS-PS1-4