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In this activity, learners examine baking powder, a combination of three powders: baking soda, cream of tartar, and cornstarch.

This lab activity is about toxic substances like pesticides and their effects on biological systems. The activity starts with an introduction of how birds sequester calcium to make an egg.

In this activity, learners will build the highest tower they can out of recycled materials.

Learners investigate signs of a chemical reaction when they mix vinegar and baking soda. In addition to a gas being produced, learners also notice the temperature decreases.

In this online interactive simulation, learners will test the pH of liquids like coffee, spit, and soap to determine whether each is acidic, basic, or neutral.

In this introductory activity and demonstration, learners are introduced to the concept that different substances react chemically in characteristic ways.

In this activity, learners use detergent solution to compare two solutions containing vinegar and cream of tartar.

A group of learners simulates the spread of disease by trading slips of paper, one set of which has been treated with a baking soda solution.