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In this activity, learners model erosion using a clear shoebox and sand or soil.

In this activity (on pages 6-11), learners work as a team to investigate how impact craters on Earth, the Moon or other planets take shape and what patterns they make.

In this earth science activity, learners conduct a series of short experiments to explore how rocks change.

In this activity, learners use crayons to draw conclusions about rocks and the rock cycle.