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Plant Power
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In this chemistry challenge, learners identify which plants have the enzyme "catalase" that breaks hydrogen peroxide into water and oxygen.
Odors Aloft
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Learners smell balloons filled with different scents to guess what's inside. From this, they infer the presence and motion of scented molecules.
The Liquid Rainbow
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Learners are challenged to discover the relative densities of colored liquids to create a rainbow pattern in a test tube.
Choose Your Ooze
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During this activity, learners will make different versions of "ooze" using varied proportions of detergent and glue.
Fruit Juice Mystery
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In this chemistry challenge, learners work to figure out which of four juices are real, and which is just food coloring and sugar.
Reaction: Yes or No?
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In this activity, learners mix ingredients in a plastic bag, and then identify three characteristics of a chemical reaction: production of heat, color change, and production of a gas.