How Greenhouse Gases Absorb Heat

In this experiment, students will observe two model atmospheres: one with normal atmospheric composition and another with an elevated concentration of carbon dioxide. These two contained atmospheres will be exposed to light energy from a sunny window or from a lamp. The carbon dioxide is produced by a simple reaction and tested using bromothymol blue (BTB).

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American Museum of Natural History
Activity takes one 45-minute class period.

Notes From Our Reviewers

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Teaching Tips

Teaching Tips

The instructions and the figures are helpful.

While the experimental setup should be readily available in a well stocked lab, it might require a little work for less prepared labs.

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