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Start a Rock Collection
Source Institutions
Learners follow a three-step process to start their own rock collection.
Crater Maker
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.
Erosion
Source Institutions
In this activity, learners model erosion using a clear shoebox and sand or soil.