First we prepared a worm jar as described in Small Wonders by Garrett & Thomas. We collected worms for the jar from our compost pile. Then we placed the following food on top of the soil: carrot, apple, brussel sprouts, & lettuce. Every few days, we sprayed water into the jar and made observations. After a few weeks, we returned the worms to the compost pile.
Hypothesis
- worms will eat cornmeal
- worms will eat all food left on the surface
- worms will mix layers
- apple peels disappeared first
- carrot peels were pulled underground
- brussel sprouts & lettuce remained on the soil surface
- worms were often seen in the sand layer
- soil layers were mixed
- castings were found on the soil surface
- less cornmeal could be seen at the end of the experiment
Books: An Earthworm's Life by Himmelman; Wiggling Worms at Work by Pfeffer; There's a Hair in My Dirt! A Worm's Story by Larson
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