Phase Change Chapter 1 Review

Which phase (state) of matter has the lowest freedom of movement?

• solid

• liquid

• gas

A gas

• has molecules that vibrate in place

• has molecules that flow past each other

• has fast-moving molecules that move away from each other

Freezing

• Solid to gas

• Liquid to solid

• Gas to solid

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Evaporation

• liquid to gas

• gas to solid

• gas to liquid

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Which state of matter has a definite shape?

• solid
• liquid
• gas

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What is happening when my ice cream changes from a solid to a liquid?

• freezing

• melting

• burning

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The state of matter that does not have a visible shape and fills its container.

• Solid

• Liquid

• Gas

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Molecules in a ______________________ move quickly and are far apart.

• gas

• solid

• liquid

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Molecules of a liquid

• are tightly packed together and stay in a fixed position.

• are free to move around one another but still touch.

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Solid to Liquid

• Melting

• Condensation

• Evaporation

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