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Learners are given mysterious white powders and have to determine their identity with chemical tests.

This activity is about collecting and analyzing DNA as part of a criminal investigation.

In this activity, learners explore acid and bases as they create their own invisible ink out of baking soda and grape juice.

In this demonstration (9th on the page), learners explore eyewitness memory and how memories differ amongst individuals. While the rest of the group is minding their own business (i.e.

Learners observe different paper samples under ordinary room light and under a black light to learn some of the chemical differences between different types of paper.