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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.

This lesson plan provides learners with two activities to explore the connections between events in their lives and the seasons of the year.

In this activity, learners build their own magnetometer using an empty soda bottle, magnets, laser pointer, and household objects.

In this activity (on pages 16-21), learners get a sense of geological time by understanding how big a million is.