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This is an activity (located on page 4 of the PDF under Surface Area Activity) about surface area and reactivity.

In this chemistry challenge, learners identify which plants have the enzyme "catalase" that breaks hydrogen peroxide into water and oxygen.

In this chemistry activity, learners use yeast and hydrogen peroxide to generate a gas (oxygen) and test some of its properties.

In this activity, learners will experiment with catalysts to create an at-home version of elephant toothpaste.