Bubbles seem to come from nowhere. Pupils investigate the formation of carbon dioxide bubbles in sodas. By placing different objects, including candies, in the soda, learners observe the formation of tiny bubbles on the surface of the object.

Concepts

carbon dioxide, soda, bubbles, molecules

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Instructional Ideas

• Compare the bubbles formed from a flat soda to a freshly opened one
• Use a Soda Stream product to increase the amount of carbon dioxide into the soda

Classroom Considerations

• One part of Adventures in Chemistry Experiments

Pros

• Includes a description of what to expect
• Provides an additional experiment to extend the discovery

Cons

• None