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In this activity, learners observe how salinity affects the freezing point of water by making and enjoying ice cream. Pairs of learners will combine ingredients in a plastic bag and then add...

In this chemistry meets cooking activity, learners compare the stability of egg white foams with various additives. In doing so, learners explore albumen proteins as well as how the addition of...

Learners explore water adhesion and learn about why water molecules are more strongly attracted to some substances than others. In an investigation titled "Fabric Frenzy," learners use a...

In this chemistry activity, learners use chemical reactions to observe the composition of an alloy. Learners will calculate and record the amount (mass and percentage) of copper and zinc in a penny...

In this activity, learners construct a device out of a piezoelectric igniter, like those used as barbecue lighters. Learners use the device to remotely start current flowing in a simple series...

In this activity, learners use three types of cheesy snacks--cheese balls, cheese puffs, and Cheetos--to learn about polymers. This activity introduces learners to basic concepts and vocabulary of...

Everybody loves bubbles, and this is the best bubble recipe ever! Included as part of one of COSI's Family Science Quests, this COSI favorite invites learners to make bubbles and suggests a...

Some animals can swallow food whole, but humans have to chew. In this activity, learners will investigate what saliva does chemically to food before we even swallow. Learner will examine how their...