Unit 1: Properties of Water

What is a water molecule composed of?

• 1 Hydrogen atom and 2 Oxygen atoms
• 2 Hydrogen atoms and 1 Oxygen atom
• 3 Oxygen atoms
• 2 Helium atoms and 1 Oxygen atom

Tags

NGSS.MS-PS1-1

Water is a universal solvent because it...

• It can be found anywhere
• It freezes when it gets cold
• floats when frozen
• Dissolves most substances

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NGSS.MS-PS1-2

The fact that ice floats on liquid water is due to the fact that water's solid is ___________ than it's liquid form

• less polar
• more polar
• less dense
• more dense

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NGSS.MS-PS1-4

Refer to the picture; this is occurring because of:

• Adhesion
• Cohesion

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NGSS.MS-ESS2-4

Refer to the picture; this is occurring due to:

• Adhesion
• Cohesion

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NGSS.HS-ESS2-5

Refer to the picture; this is occurring because of:

• Adhesion
• Cohesion

Which is NOT a unique property of water?

• Frozen water floats on liquid water.
• Water covers most of the Earth’s surface and retains a large amount of heat.
• Water molecules stick to each other through hydrogen bonds.
• Water cools very rapidly.

Tags

NGSS.HS-ESS2-5

The attraction that causes water and other liquids to form drops on thin films is called ________________. This is also water’s ability to be attraction to other water molecules.

• adhesion
• capillary action
• cohesion
• surface tension

Some insects and small organisms can walk on water due to

• Adhesion

• Capillary Action

• Surface Tension

• Specific heat

The tendency of water molecules to attract to one another is known as

• Adhesion

• Cohesion

• Specific heat

• Capillary Action

Tags

NGSS.HS-ESS2-5