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

This activity investigates how bark beetles can threaten forests by having learners estimate the number of infected trees from a photo.

Learners observe different light sources, outdoors and indoors, using prism glasses (diffraction glasses) and color filters.

In this activity, learners discover how a cabbage juice indicator helps identify acids and bases, and how iodine indicates the presence of starch.