Count the number of earthworms in the cube of soil.
To most of us, one earthworm resembles another. Although earthworms do have common characteristics, species differ widely in their size, ...
In this activity, students learn about soil quality and soil properties by conducting a visual soil assessment (VSA). The activity ...
Earthworms are useful indicators of soil health. This project aims to capture information on earthworm abundance and species distribution throughout ...
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