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

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

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

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 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.