NGSS.MS-PS1-4

If an object has particles that are moving very slowly, the object's temperature is probably ______.

• hot
• small
• cold
• big

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NGSS.MS-PS1-4

A crayon placed on a dark driveway in bright sunlight melted into a colorful puddle. What caused the crayon to melt?

• Solar radiation heated the driveway and then heat transferred to the crayon by conduction.
• Solar radiation heated the driveway and then heat transferred to the crayon by radiation.
• Solar convection heated the driveway and then heat transferred to the crayon by radiation.
• Solar convection heated the driveway and then heat transferred to the crayon by conduction.

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NGSS.MS-PS1-4

Is melting butter for popcorn a chemical or physical change?

• chemical
• physical

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NGSS.MS-PS1-4

When air in a hot air balloon is heated the air inside the baloon...

• expands
• contracts
• evaporates
• condenses

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NGSS.MS-PS1-4

Particles (molecules) in a ______________________ have more energy than the other states of matter.

• gas
• solid
• liquid

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NGSS.MS-PS1-4

Particles closest together

• solid
• liquid
• gas
• solid, liquid and gas

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NGSS.MS-PS1-4

As particles are exposed to warmer temperatures they __________

• speed up
• slow down
• stay the same
• vibrate

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NGSS.MS-PS1-4

The measure of the energy of motion in the particles of matter, which we feel as how hot or cold something is.

• matter
• gas
• temperature
• atomic theory

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NGSS.MS-PS1-4

As thermal energy increases, what happens to the movement of the molecules?

• Increases
• Decreases
• Stays the same 

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NGSS.MS-PS1-4

As energy in the form of heat is added to an ice cube, it begins to melt. What causes melting.

• Heat causes the molecules to expanded and forces them apart.

• Heat removes thermal energy from the ice cube and causes it to become liquid water.

• Adding energy causes the bonds between the hydrogen and oxygen in the ice cube to break.

• The transfer of thermal energy to the ice cube causes its molecules to move faster.

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NGSS.MS-PS1-4