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In this electrochemistry activity, young learners and adult helpers create a battery from a potato to run a clock.

Heat makes some materials expand, and it makes others shrink.

Learn about dyes and mordants (fixatives) when you tie-dye fabric with Kool-Aid™ and vinegar. The colored molecules in Kool-Aid™ form a chemical bond between the fiber and dye molecules.

In this activity, learners create a biosphere in a baggie.