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In this activity, learners explore chemistry and the microbial world by making their own sourdough starter and bread at home using only flour and water.

In this activity, learners explore engineering package designs that meet the needs of safely shipping a product.

In this laboratory activity, learners design an experiment to evaluate how environmental factors influence the growth of molds.

In this activity related to Archimedes' Principle, learners use water displacement to compare the volume of an expanded gummy bear with a gummy bear in its original condition.

In this environmental health activity, learners grow and observe bread mold and other kinds of common fungi over the course of 3-7 days.

In this four-day activity, learners grow bacteria and/or fungi from a variety of locations and compare the results.