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In this activity, learners balance chemical equations and discover the law of conservation of mass. Learners use coins to model molecules to balance the equations.

In this math activity, learners estimate how many pennies are in a jar by predicting and counting handfuls of pennies.

This simple but open-ended math game introduces basic probability concepts using coins and dice. Players roll the dice and collect coins to match the number rolled.

In this activity, challenge learners to predict and investigate how many water drops they can fit on one penny.

In this activity, learners light an LED with five cents. Learners use two different metals and some sour, salty water to create a cheap battery.