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Unit 2 Knowledge Organiser: 2.4

Unit 2 Knowledge Organiser: 2.4

Assessment

Presentation

Geography

6th Grade

Hard

Created by

Mecailla Fox

Used 1+ times

FREE Resource

7 Slides • 1 Question

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Unit 2 Knowledge Organiser:

2.4 Why are soils the root of life?

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2.4 Why are soils the root of life?

Soil is a thin layer on the Earth’s surface between the lithosphere and biosphere. It is a layer of mineralswater and organic matter that forms from the weathered rock below, and decaying vegetation above. 

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Soil

Soil is very precious. Plants root in it, and take up minerals and water to grow. 

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Soil types

It is usually 1–3 metres deep. It can take between 100 and 1,000 years for just one centimetre of soil to build up. 

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Multiple Select

What lives in soil? Select all correct answers

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fungi

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bacteria

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insects

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earthworms

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animals

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Soil is alive!

Soil is alive with organisms, like fungi, bacteria, insects, earthworms and burrowing animals, that all have a role to play in developing the soil. Scientists believe that there are probably more individual species living below ground than above the surface. 

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Unit 2 Knowledge Organiser:

2.4 Why are soils the root of life?

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