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In this activity (on page 1), learners role play as atoms to explore how atoms can be rearranged to make different materials.

In this (edible) activity, learners balance chemical equations using different kinds and colors of candy that represent different atoms. Learners will work in pairs and explore conservation of atoms.

In this activity, learners use two different techniques to estimate how many little things fit into one bigger thing.

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.