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The Jelly Bean Problem (JBP)
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In this activity, learners are challenged to eat some candy as a cell would need to as well as to think about some of the problems that arise when a cell ingests food.

Rate of Solution Demonstration
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In this chemistry demonstration, learners investigate the factors that increase the rate of dissolution for a solid.
Are you a Supertaster?
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In this activity, learners examine their tongue and taste buds.

The Thousand-Yard Model
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This is a classic exercise for visualizing the scale of the Solar System.