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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 experiment, learners separate different types of molecules in marker inks (using a technique called "thin layer chromatography").

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

In this activity with several mini experiments, learners explore the chemistry that helps scientists learn about the environment and how they can help save it.

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