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This fun and simple hands-on astronomy activity illustrates the value of supernovae in the universe.

In the wild, small crustaceans known as brine shrimp live in marine habitats such as saltwater lakes.

Learners add calcium chloride to a baking soda solution and observe an increase in temperature along with the production of a gas and a white precipitate. These are all signs of a chemical reaction.

Learners mix vinegar and baking soda to produce a gas. With the addition of a bit of liquid soap, the gas becomes trapped in measurable bubbles.