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Mrs. Cornwell
Soil is the layer of loose material that covers Earth's land surface.
How is Soil Formed?
How is Soil Formed?
Large rocks and organic materials are weathered by nature and broken down into smaller pieces.
Soil Layers
Soil Layers
You Will Need:
1 Plastic Clear Cup
1 Plastic Spoon
1 Small Ziplock Bag
1 Small Container of Chocolate Pudding
Mini Marshmellows
Chocolate Chips
Green Shredded Coconut
Gummy Worms
Oreos
Bedrock is below subsoil. As a rock breaks down, it provides resources for making new soil.
Our Edible Bedrock= Marshmellows!
Subsoil is under the topsoil. It has pieces of broken rocks and roots. This layer may contain some water.
Our Edible Subsoil: Chocolate pudding with chocolate chip "rocks"
Top Soil is the upper layer. It is the darkest crumbly layer. It contains the most humus. This is often seen as white and black sticky clumps in soil.
Our Edible Topsoil = Crushed Oreos!
Most plants grow in topsoil. Animals such as worms, spiders, and insects also make their homes in topsoil. Many animals rely on the soil to grow food for nutrients and energy.
Animals such as bears, make their habitats on the topsoil. Many of their food sources also grow in soil.