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In this chemistry activity, learners observe a combustion reaction and deduce the components necessary for the reaction to occur.

The demonstration/experiment provides quick proof that air has mass.

Get a roll of pennies, throw them on the ground, then remove those that only show tails, and repeat with the ones left over.

In this quick activity, learners take a balance challenge to measure their average balance time. As they collect data, they investigate how practice and repetition improve their balance time.

This activity (8th activity on the page) tests learners' ability to identify things using only the sense of hearing.

In this chemistry activity, learners use common chemicals to examine reactions that occur between two aqueous solutions.