Earth's Spheres

Front

What are the four main spheres of Earth?

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The four main spheres of Earth are the atmosphere, hydrosphere, geosphere, and biosphere.

Front

What is the atmosphere?

Back

The atmosphere is the layer of gases surrounding Earth, essential for weather and climate.

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NGSS.MS-ESS2-6

Front

What is the hydrosphere?

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The hydrosphere includes all the water on Earth, such as oceans, rivers, lakes, and groundwater.

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NGSS.MS-ESS2-4

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What is the geosphere?

Back

The geosphere encompasses all the solid land on Earth, including rocks, soil, and landforms.

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NGSS.MS-ESS2-1

Front

What is the biosphere?

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The biosphere is the global sum of all ecosystems, where life exists, including land, water, and the atmosphere.

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NGSS.MS-LS2-2

Front

How do the atmosphere and hydrosphere interact?

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The atmosphere and hydrosphere interact through processes like evaporation, precipitation, and the dissolution of gases in water.

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NGSS.MS-ESS2-4

NGSS.MS-ESS2-5

NGSS.MS-ESS2-6

Front

What is a closed system in environmental science?

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A closed system is one that does not allow the transfer of matter in or out, but allows the transfer of energy.

Front

What is coal classified as?

Back

Coal is classified as a non-renewable resource.

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NGSS.HS-ESS3-2

Front

What is the role of the biosphere in Earth's systems?

Back

The biosphere supports life and interacts with the other spheres through processes like respiration and photosynthesis.

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NGSS.MS-LS2-3

Front

What is an example of an interaction between the geosphere and biosphere?

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An example is plants growing in soil, where the geosphere provides nutrients and structure for the biosphere.

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NGSS.MS-ESS2-1

NGSS.MS-LS2-3