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Soil Vocabulary
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Soil Vocabulary

Feb 23, 2016

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Soil Vocabulary. Soil! A natural resource found in our own backyard!! . Soil is the loose material in which plants can grow in the upper layer of Earth. It is made up of rock, humus, air, and water. Soil is made up of 5 important components and has 3 layers!. The 5 Components of Soil. Humus - PowerPoint PPT Presentation
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Page 1: Soil Vocabulary

Soil Vocabulary

Page 2: Soil Vocabulary

Soil! A natural resource found in our own backyard!!

Soil is the loose material in which plants can grow in the upper layer of Earth. It is made up

of rock, humus, air, and water.Soil is made up of 5 important components and

has 3 layers!

Page 3: Soil Vocabulary

The 5 Components of Soil

• Humus• Sand• Silt• Clay• Rock

Page 5: Soil Vocabulary

Sand

Sand is made up of small grains of weathered rock.

DOES NOT hold water well! Few nutrients

Page 6: Soil Vocabulary

SiltMade up of very small pieces of broken

rock.Sand > Silt > Clay

Page 7: Soil Vocabulary

Clay• Can be red or yellow!• Holds water well!• Contains nutrients!

Back

Page 8: Soil Vocabulary

3 Layers of Soil!

• Topsoil• Subsoil• Bedrock

Page 9: Soil Vocabulary

Topsoil• This is the top layer.• It is where animals live and plants

grow.• It is a mixture of humus and rock

fragments.• It is the best layer for growing plants!

Back

Page 10: Soil Vocabulary

Subsoil• Made up mostly of clay

• Under the topsoil• Not as good for growing plants

Page 11: Soil Vocabulary

BedrockThis is the third and bottom layer of soil. It is

under the subsoil. It is made up of weathered rock and solid rock.

The worst part of soil for plant growth.

Page 12: Soil Vocabulary

NutrientsThese are the materials that plants and

animals need to grow. Do you remember where they can be found in soil?

What layer? Which components?

Page 13: Soil Vocabulary

Weathering(breaks down)

When rocks and other materials on the Earth’s surface are broken down into smaller pieces by weather, water, and living things.

Beach in Corolla, N.C

Page 14: Soil Vocabulary

Weathering of the rocks and stumps in Corolla, N.C.

Page 15: Soil Vocabulary

Erosion(moves it)

This is a force that gradually wears away soil and its nutrients. Can be caused by natural elements such as

wind, water, and ice. This is because of the flow due to gravity.

*Check out this experiment on erosion.

Beach in Corolla, N.C

Page 16: Soil Vocabulary

Some more pictures of Erosion!Beach in Corolla, N.C.

Page 17: Soil Vocabulary

Beach in Corolla, N.C.