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In this activity (on pages 12-15), learners make a crater model and test the effects of weather (rain) on its surface.

Space Guess Quest is a fun game that encourages participants to identify the many types of objects in space, from human-made spacecraft to nebulas, galaxies, stars, and worlds.

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 online activity, learners build their own system of heavenly bodies and watch the gravitational ballet.