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In this chemistry activity, learners use thin layer chromatography to determine the molecular composition of different markers.

In this activity, learners build models of atoms and molecules, then consider their role in different phases of matter, density, and mixtures and solutions.

In this activity, learners make a paper model of a polymer, then make Silly Putty, an actual polymer.

In this four-part activity, learners explore how the body works and the chemistry that happens inside living things.