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

In this space science activity, learners explore transits and the conditions when a transit may be seen.

In this two-part activity, learners explore the Earth and Sun's positions in relation to the constellations of the ecliptic with a small model.

In this activity, learners build a scale model of the solar system using a roll of toilet paper.

Learners make a mobile model of a carbon atom using clay, wire, and pipe cleaners.