Frozen Water on Earth

What are glaciers primarily composed of?

• Sea ice

• Compacted layers of snow

• Icebergs

• Frozen rivers

Where are glaciers mostly found?

• Near the equator

• In low-lying valleys

• Near the poles

• In tropical forests

Why are glaciers sometimes referred to as 'rivers of ice'?

• Because they can be navigated like rivers

• Because they are found near rivers

• Because they flow over land

• Because they contain freshwater

How does sea ice form?

• By snowfall on the sea surface

• When ocean water freezes

• From freshwater lakes

• From melting glaciers

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NGSS.MS-PS1-4

What makes sea ice less salty than seawater?

• Exposure to sunlight

• Absorption of freshwater

• Salt does not freeze

• The cold temperatures

What percentage of the world's fresh water is stored in glaciers and sea ice?

• About 95%

• About 80%

• About 50%

• About 20%

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NGSS.MS-ESS2-4

How do glaciers and sea ice help regulate Earth's temperature?

• Through evaporation

• Producing cold air currents

• Reflecting sunlight

• By absorbing carbon dioxide

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NGSS.HS-ESS2-4

What role does the white surface of sea ice play in Earth's climate?

• It reflects sunlight

• It has no significant effect

• It absorbs heat from the sun

• It generates heat

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NGSS.HS-ESS2-4

What is the main cause of glaciers and sea ice melting?

• Global warming

• Asteroid impacts

• Volcanic eruptions

• Ocean currents

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NGSS.MS-ESS2-6

NGSS.MS-ESS3-5

What could be a consequence of melting sea ice and glaciers?

• Rising sea levels

• More polar ice caps

• Lower sea levels

• Increased land mass

Tags

NGSS.MS-ESS2-4