Unit 1 Chemistry of Life Practice Test

Why does water move from the roots to the leaves of plants?

• Water is pushed by solutes.
• Capillary action pulls the water molecules like a chain.
• Water is pulled by gravity.
• Water’s cohesion causes it to “pull” towards the leaves.

Water expands as it freezes

• True
• False

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NGSS.MS-PS1-4

NGSS.MS-PS3-4

Refer to the picture; this is occurring because of:

• Cohesion

• Adhesion

• Capillary action

• Surface tension

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NGSS.MS-ESS2-1

NGSS.MS-ESS2-4

The diagram has shown the WATER molecules. What is A

• Hydrogen

• Oxygen

• Carbon dioxide

• Helium

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NGSS.MS-PS1-1

The diagram has shown the WATER molecules. What is B

• Hydrogen

• Oxygen

• Carbon dioxide

• Helium

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NGSS.MS-PS1-1

Ice floats because

• It's really cold

• It is shaped like a square

• less dense than liquid water

• more dense than liquid water

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NGSS.MS-PS1-4

NGSS.MS-PS3-4

Draw a water molecule.

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NGSS.MS-PS1-1

What two atoms make up Water?

• Nitrogen

• Oxygen

• Carbon

• Hydrogen

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NGSS.MS-PS1-1

Which is NOT a property of water?

• Water has a high specific heat capacity

• Water is a polar molecule

• Water molecules cannot bond with other water molecules

• Water is more dense as a liquid than as a solid

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NGSS.MS-PS3-4

Which answer best describes cohesion?

• Water molecules are attracted to other molecules

• Water molecules are polar

• Water molecules are attracted to other water molecules

• Water moves up against gravity in plants