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The Dirt on Dirt

From Sid the Science Kid · 2009

The Dirt on Dirt
25 minK1st2ndScience
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Summary

Sid is fascinated by dirt after playing outside and asks: what is dirt actually made of? At school, the class scoops, sifts, and examines soil up close — discovering it contains sand, clay, rocks, and bits of dead plants and animals all mixed together.

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All ages
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Teaching resources

Discussion questions

Discussion

Dirt might seem plain, but it is a complex mixture of many different materials.

  1. Name three different things Sid found inside soil. How were they different from each other?
  2. Why do plants need soil? What parts of soil do you think help plants grow?
  3. What would happen to a garden if the soil had no organic matter in it?

Quick work-a-long

Vocabulary: soil, sand, clay, organic matter, observe, classify.

Try it: Collect a small cup of dirt from outside. Use a magnifying glass to sort what you see into groups: rocks, sand, plant pieces, and anything else. Draw what you found.