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

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

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

This series of chemistry stations is designed to accompany the PBS documentary about African-American chemist "Percy Julian: Forgotten Genius." Each of the six stations features either a chemical or p

In this experiment, learners will conduct chemical and physical tests to identify mystery substances.

In this activity, learners explore how environmental engineers might approach solving the problem of an oil spill.

In this activity, learners add dilute bleach solution to water that has been dyed with yellow, blue, and green food color.