What Is Soil Made Of?
Have students work in groups of 2-4 to conduct the activity.
Materials per Student Group
- 2 cups of natural soil
- 2 paper plates
- 1/2 tsp of alum
- Clear soft drink bottle with screw-on cap, 2-liter size
- Measuring cup
- Metric ruler
- Newspapers to cover work area
- Copy of “Soil Observations” student sheet
Materials per Student
- Craft stick, toothpick or coffee stirrer
- Hand lens (magnifier)
This activity works best with a sample of natural soil dug recently from a field, yard, garden, playground, etc. About one large shovelful of soil will be enough for an entire class. Collect the soil 24 hours or less before conducting the activity and store it in a large plastic bag. Do not seal the bag completely.
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Funded by the following grant(s)
My Health My World: National Dissemination
Grant Number: 5R25ES009259
The Environment as a Context for Opportunities in Schools
Grant Number: 5R25ES010698, R25ES06932