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In this activity about humans and space travel (page 1 of PDF), learners compare and contrast the behavior of a water-filled plastic bag, both outside and inside of a container of water.

In this activity about center of gravity (page 23 of PDF), learners investigate how the body adjusts to the force of gravity to remain balanced.

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

The Butterflies in Space Teacher's Guide uses "life in space" to encourage learners to conduct their own open-ended scientific investigations.

This fun and simple hands-on astronomy activity lets learners imagine what would happen if our Sun were replaced with a black hole.