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In this design challenge, learners will use microbes to design and grow a custom biomaterial at home and make something creative with it.

In this chemistry activity (page 8 of the PDF), learners will identify the instances of physical change, chemical change, and solutions while making homemade soda pop.

This is a hands-on activity that uses bread and household materials to grow mold. Learners collect dust from a room, wipe it on food, and contain it. One to seven days later, mold has grown.

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