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Soil is a mixture of organic material and minerals. The top layer is made of dead leaves, followed by a layer of decomposing matter called humus. Underneath are minerals and clay and finally, at the bottom, there is bedrock.

Soil - Wikipedia

en.wikipedia.org/wiki/Soil

Soil is a mixture of minerals, organic matter, gases, liquids, and countless organisms that ...... In this way the open structure of the soil is destroyed and the soil is made impenetrable to air an...

What is soil made of?

almnh.ua.edu/uploads/2/7/3/6/27369077/activity_whatssoilmadeof1.pdf

Which one of these is there most of in soil? Why is each of these important in soil ? ... Just under half, about 35 to 40%, of a good soil is made up of water and air!

What is Soil? - Soil-net.com!!

www.soil-net.com/legacy/schools/what_is_soil1.htm

Soil is made up of three main components – minerals that come from rocks below or nearby, organic matter which is the remains of plants and animals that use ...

What Is Soil Made Of And How Does Soil Form? - Smiling Gardener

www.smilinggardener.com/organic-soil-management/what-is-soil-made-of-and-how-does-soil-form

If you've ever wondered what is soil made of - GOOD! let's start by answering the question how does soil form?

Soil - EnchantedLearning.com

www.enchantedlearning.com/geology/soil/

Soil covers much of the land on Earth. It is made up of minerals (rock, sand, clay, silt), air, water, and organic material (matter from dead plants and animals).

What is Soil Made Of? Learn the Components of Soil - Bright Hub

www.brighthub.com/environment/science-environmental/articles/106281.aspx

Soil is made of four basic components: sand, silt, clay, and humus. Learn where they come from and where they are found in the horizons of a soil profile.

What is Soil Made Of? - The Tech-FAQ

www.tech-faq.com/what-is-soil-made-of.html

Mar 11, 2016 ... Soil, together with water and air, is one of the three key natural reserves. Without soil, there would not be any form of natural vegetation or life.

All About Soil | Soils 4 Kids

www.soils4kids.org/about

Soils are complex mixtures of minerals, water, air, organic matter, and countless ... Dig down deep into any soil, and you'll see that it is made of layers, ...

What Is Soil Made Of? | BioEd Online

www.bioedonline.org/lessons-and-more/lessons-by-topic/ecology/food/what-is-soil-made-of/

Students explore a sample of natural soil by identifying and separating its different components. Student sheets are provided in English and in Spanish.