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Mrs. Cornwell

Third Grade

Edible Soil

Profile

What is Soil?

What is Soil?

Soil is the layer of loose material that covers Earth's land surface.

Types of Soil

Types of Soil

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

Let's Make Dirt Pudding!

Let's Make Dirt Pudding!

Materials:

Materials:

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

Bedrock is below subsoil. As a rock breaks down, it provides resources for making new soil.

Our Edible Bedrock= Marshmellows!

SUBSOIL

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"

TOPSOIL

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.

TOPSOIL

Our Edible Topsoil = Crushed Oreos!

Organic Matter in Topsoil

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.

Our Edible Grass

= Green Coconut

Our Edible Grass

= Green Coconut

Our Edible Worms

= Gummy Worms

Our Edible Bears

=Teddy Grahams

Animals such as bears, make their habitats on the topsoil. Many of their food sources also grow in soil.

Let's Eat and Reflect!

Let's Eat and Reflect!

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