Phases of Matter

Molecules in a solid look like:

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• 
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• 

Molecules in a gas look like:

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• 
• 
• 

Molecules in a liquid look like:

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Which arrow shows melting?

• 1

• 2

• 3

• 4

Which arrow shows condensation?

• 1

• 2

• 3

• 4

Which arrow shows freezing?

• 1

• 2

• 3

• 4

Which arrow shows evaporation?

• 1

• 2

• 3

• 4

When temperature is increased, these molecules will become:

• solid

• liquid

• gas

When temperature is decreased, these molecules will become:

• solid

• liquid

• gas

When temperature is decreased, these molecules will become:

• solid

• liquid

• gas