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In this environmental science activity, learners research what is essential for plant life and the necessary components of soil to support plants.

This activity shows you how to make a mold terrarium using a jar and leftover food.

Learners design their own experiment to determine conditions that either help or hinder the decomposition of carrots by soil microbes.

This activity (page 2 of the PDF under SciGirls Activity: Bogs) is a full inquiry investigation into decomposition.