Soil Formation

Select two reasons why soil is important.

• Soil is a mixture of different things.

• Virtually all of our food supply depends on soil.

• The organic matter consists of the decayed remains of organisms, including plants and animals.

• Soil contains the food, air, and water that plants need to grow.

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NGSS.MS-LS2-3

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What is something that people who work with soil can do to maintain soil quality

• We can *not* plant on soil.

• We can put lots of chemicals on it.

• We can grow the same crops every year in the same area.

• We can also be careful about what chemicals we put on it.

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NGSS.MS-ESS3-3

NGSS.MS-LS2-5

Which is NOT found in all soil?

• sand

• silver

• clay

• silt

Which is NOT a factor that determines what type of soil forms in certain areas?

• animals

• slope

• climate

• types of plants

Where does soil come from?

• Sand and leaves.

• Weathered rock particles and humus mix with air and water

• Weathered trees mix with decomposing animals.

• Clay and silt.

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NGSS.MS-LS2-3

NGSS.MS-ESS2-1

How long does it take soil to form?

• ten years

• one hundred thousand years

• one hundred years.

• hundreds to thousands of years

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NGSS.MS-ESS2-2

Soil is classified as a non-renewable resouce. True or False?

• True

• False

Soil is the same everywhere in the world. True or False?

• True

• False

Which is NOT a color of soil?

• yellow

• red

• green

• black

The longer it takes a soil to form, the _______ it will be.

• thicker

• thinner

• smellier

• stickier

Tags

NGSS.MS-ESS2-2