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In this activity, learners sublimate dry ice and then taste the carbon dioxide gas.

This is an activity about acid-base reactions using eggs and vinegar. Learners place eggs inside a container of vinegar and leave to soak overnight.

In this activity, learners measure the amount of carbon dioxide in a carbonated drink.

In this chemistry meets cooking activity, learners make carbonated, vanilla ice cream using dry ice and denatured ethanol, which are both inexpensive and accessible.

In this activity, learners make a yeast-air balloon to get a better idea of what yeast can do. Learners discover that the purpose of leaveners like yeast is to produce the gas that makes bread rise.

In this activity, learners will discover why there are holes in bread.

In this chemistry activity, learners use spaghetti to explore density and chemical reactions.

In this activity, learners conduct a controlled experiment to examine which brand of soda makes the best (highest) soda geyser.

The Ancient Egyptians used a naturally-occurring salt from the banks of the Nile River, called natron, to mummify their dead.

Using yeast, sugar, and water, learners create a chemical reaction which produces carbon dioxide (CO2) gas inside a 2-liter bottle. They use this gas to inflate a balloon.

In this activity, learners separate the components of Gatorade using a home-made affinity column.

This simple and engaging astronomy activity explains nuclear fusion and how radiation is generated by stars, using marshmallows as a model.

This is a highly visual demonstration that illustrates both the effects of density and chemical reactions.

In this activity, learners build models of comets, using edible materials, to learn about comets' structure.

In a series of three experiments, learners explore the basics of biotechnology using self-locking plastic baggies. Each experiment demonstrates a phenomenon or principle of biotechnology.