- clear plastic cups
- breakfast cereal, some crushed, some whole
- shredded coconut
- 1/2 gallon milk
- plastic spoons
Edible Soil Profile
- Explain that the plastic cup represents the parent material,
the whole cereal represents the subsoil and the crushed cereal
represents the topsoil. Sprinkle coconut on top to represent grass
or other plant material.
- Students should wash their hands before making their own soil
- As you pour milk, explain that water moves through the soil in
much the same way that milk moves through the cereal.
(enough for 18 students)
- 2 c peanut butter *
- 1 c honey
- 3 c instant dry milk
- wax paper
- Grease measuring cup with vegetable oil.
- Mix peanut butter with honey.
- Add instant dry milk, a little at a time, until mixture is
- Cover students’ desks with wax paper, and have students
wash their hands.
- Spoon out the “edible clay” to each student and
allow them to experiment and create with the clay.
* If you have students who are allergic to peanuts, you may
substitute hazelnut or some other kind of nut butter.
- dried cherries (organic material)
- chocolate or butterscotch pudding (topsoil)
- chunky peanut butter (subsoil) *
- bananas (parent material)
- rice cake (bedrock)
Layers of Soil Snack
Students will use the materials provided to build the layers
of soil, as indicated at left.
Back to Food
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Oklahoma Ag in the Classroom
Oklahoma Ag in the Classroom is a program
of the Oklahoma Cooperative Extension Service, Oklahoma Department
of Agriculture, Food and Forestry and the Oklahoma State Department