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In this hands-on experiment, kids use chemistry to explore whether acids or bases are better at restoring a penny’s shine.

Learners observe a flask with a balloon attached over the mouth and inverted inside the flask.

Learners investigate the properties of the liquids in two bottles. One contains layers of oil and water, and one contains oil, water, and soap.

In this activity, learners will create their own lava lamps. Learners will explore density, effervescence and chemistry through this activity.