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In this activity, learners confront their perceptions of gravity in the solar system.

By tossing, collecting, and sorting beanbags, learners understand how the IBEX spacecraft uses its sensors to detect and map the locations of particle types in the interstellar boundary.

In this activity, learners work in teams to investigate the composition of unseen materials using a variety of tools.

In this outdoor, winter activity, learners find living green plants under the snow and determine the light and temperature conditions around the plants.