Chem 1: How Can I Smell From a Distance?

An ice cube, a brick, and a table are all examples of a

• liquid

• solid

• gas

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Apple juice, coffee, and vinegar are all examples of a

• liquid

• solid

• gas

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Why is it important to study the properties of matter?

• Every form of matter has its own specific set of properties that make it unique.

• The properties of matter help us understand how to make things from that matter.

• all of the above

• none of the above

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What happens to water molecules when they freeze from a liquid to a solid?

• The molecules slow down

• The molecules move faster

• The molecules stop moving

• The number of molecules increases

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NGSS.MS-PS1-4

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The water molecules we breathe out lose energy and move so much more slower that they clump together to become liquid water. This is called

• evaporation

• condensation

• boiling

• freezing

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When you breathe on a cold day or open the freezer, the cloud like object is actually tiny water droplets.

• False

• True

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When you boil water, the steam that is made is actually

• gaseous water

• air

• hydrogen and nitrogen

• carbon dioxide

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The molecules of a substance in a solid phase

• are very far apart

• are very close together

• move very quickly

• do not move at all

Water molecules in a gas phase _________ than in a solid phase.

• are closer together

• move very slowly

• are farther apart

• stand still

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NGSS.MS-PS1-4

When the temperature of a gas is ___________, the molecules move slower.

• increased

• decreased

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