Properties of water

What is the polarity of a water molecule?

• It has a partial positive charge on one side and a partial negative charge on the other.

• It has a full positive charge on one side and a full negative charge on the other.

• It has no charge at all.

• It has a full positive charge on both sides.

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Which property of water helps regulate Earth's climate?

• High specific heat capacity

• Low specific heat capacity

• High density

• Low density

What is the process called when water vapor cools and forms clouds?

• Condensation

• Evaporation

• Precipitation

• Infiltration

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Which type of freshwater is stored in aquifers beneath the Earth's surface?

• Groundwater

• Surface water

• Glacial water

• Rainwater

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What is the main challenge to water sustainability mentioned in the passage?

• Pollution, over-extraction, and climate change

• Lack of rainfall

• Too much rainfall

• Excessive water conservation

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NGSS.MS-ESS3-4

What is the role of infiltration in the water cycle?

• It allows water to seep into the ground, replenishing aquifers and supporting plant life.

• It causes water to evaporate into the atmosphere.

• It leads to the formation of clouds.

• It results in precipitation.

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NGSS.MS-ESS2-4

Why is water referred to as the 'universal solvent'?

• Because it can dissolve many substances.

• Because it can freeze easily.

• Because it can evaporate quickly.

• Because it is found everywhere on Earth.

Label the POSITIVE and NEGATIVE charge of a water molecule!

a

b

+

-

Water is polar. What does that mean?

• it is a molecule with opposite charges on opposite ends

• it is a molecule with no charge

• it is a molecule with identical charges on opposite ends

• it is a molecule with too many protons

When a molecule has an opposite electrical charge on each end, it is known as what?

• cohesion
• polar molecule
• hydrogen bond
• solution