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In this chemistry activity, learners are asked to form a hypothesis about the behavior of milk as household detergents act upon it.

Learners investigate the properties of the liquids in two bottles. One contains layers of oil and water, and one contains oil, water, and soap.

In this activity, learners will write a secret message that only their friends will be able to read.

Learners use a simple process to extract DNA from strawberries.

In this classic hands-on activity, learners estimate the length of a molecule by floating a fatty acid (oleic acid) on water.