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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 on page 4 of the PDF, learners investigate the importance of washing their hands.

In this activity, use standard playing cards to introduce learners to cellular interactions such as cell to cell recognition and signal and receptor specificity.

Learners make kimchee or sauerkraut, which is really just fermented cabbage, in a 2-liter plastic bottle.