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Fizzy Nano Challenge
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This lesson focuses on how materials behave differently as their surface area increases.
Curious Crystals
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Learners carefully look at four known household crystals.
Cave in a Cup
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In this activity (page 2 of PDF under GPS: Cave Swallows Activity), learners will model how caves are formed by placing one piece of chalk in a cup of vinegar and another piece in a cup of water, then