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Learners observe two model atmospheres -- one with normal atmospheric composition and another with an elevated concentration of carbon dioxide.

In this activity, learners observe the moon each night for a month and draw their observations in a Moon Watch Log.

In this activity, Christina Elson, an archaeologist from the American Museum of Natural History, guides learners as they investigate an "artifact" and record their observations in a field journal.

Educator Amy O'Donnell from the American Museum of Natural History guides learners to create a diorama of a coral reef.

This three-part activity shows learners how to build three meteorology tools: a wind vane, a rain gauge, and a barometer.