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In this chemistry challenge, learners discover that many chemical reactions involve heat loss or gain.

In this activity learners will investigate magnetic and non-magnetic items in a sensory bottle.

Learners will build and experiment with their own windmills made from simple household materials.

In this chemistry challenge, learners systematically investigate which combination of four solutions produces a deep red color.

In this challenge, learners figure out how to make a juice stain disappear.