3.3: Change in State Teacher Slides

Multiple Choice

What happens to the atoms of matter when the temperature increases?

• They spread apart and become less dense

• They contract and become more dense

• They stay the same distance apart

• They disappear

Multiple Choice

Which of the following phase changes is an example of an endothermic process?

• Freezing

• Condensation

• Melting

• Deposition

Multiple Select

Which phase changes involve energy being absorbed by the substance?

• Melting

• Evaporation

• Freezing

• Sublimation

Multiple Choice

How does increasing temperature affect the arrangement of atoms in matter?

• Atoms spread apart and become less dense

• Atoms come closer and become more dense

• Atoms do not change their arrangement

• Atoms disappear

Multiple Choice

Which phase change results in the formation of frost?

• Condensation

• Deposition

• Sublimation

• Melting

Dropdown

Cassie places a piece of chocolate in her hand. She very quickly realizes that the chocolate is starting to turn into ​

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. Her piece of chocolate is ​

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. She scoops up what liquid she can, puts it into a bowl, and places it in the refrigerator. The liquid begins to harden in the refrigerator and is ​

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. It eventually turns back into a ​

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piece of chocolate.