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In this activity, learners discover how geologists use stratigraphy, the study of layered rock, to understand the sequence of geological events.

Learners use beach profile data from a local beach or online data from Ocean City, Maryland to investigate coastal erosion and sediment transport.

In this activity, learners make a miniature greenhouse or "terrarium" to explore the greenhouse effect.

In this astrobiology activity (on page 11 of the PDF), learners consider what organisms need in order to live (water, nutrients, and energy).

In this activity, learners explore in what ways the shape of the land and the pull of gravity influence how water moves over Earth.

In ancient Chaco Canyon, the people used a "sun dagger" petroglyph to mark the passing of seasons.