Science Reading Earth 4

Front

What is the most abundant type of water on Earth?

Back

Salt water makes up about 97% of Earth's water supply.

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Front

Why is it important to conserve water?

Back

Water is a limited resource, and conserving it helps ensure that we have enough for future generations.

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Front

What percentage of Earth's water is freshwater?

Back

Only about 3% of Earth's water is freshwater.

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Front

What are the main sources of freshwater on Earth?

Back

Freshwater sources include rivers, lakes, glaciers, and groundwater.

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Front

How does salt water differ from freshwater?

Back

Salt water contains a higher concentration of dissolved salts, primarily sodium chloride, while freshwater has a low concentration of salts.

Front

What is the water cycle?

Back

The water cycle is the continuous movement of water on, above, and below the surface of the Earth, including processes like evaporation, condensation, and precipitation.

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NGSS.MS-ESS2-4

Front

What role do oceans play in Earth's climate?

Back

Oceans regulate temperature, store carbon dioxide, and influence weather patterns.

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Front

What is the significance of groundwater?

Back

Groundwater is a crucial source of drinking water and irrigation for agriculture.

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Front

What are some human activities that threaten water quality?

Back

Pollution from industrial waste, agricultural runoff, and sewage can contaminate water sources.

Front

What is desalination?

Back

Desalination is the process of removing salt from seawater to produce freshwater.