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In this activity, learners build a "pneumatic trough," a laboratory apparatus used for collecting pure gas samples over water.

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 activity, learners test the pH of safe liquids available at home by creating a pH indicator from mashed blueberries.

In this chemistry challenge, learners systematically investigate which combination of four solutions produces a deep red color.