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In this activity, learners design a flag for a chosen or assigned planet. The instructions include information about flags on Earth, and a list of flag references.

In this group activity, learners will mark important developments of life on Earth on a timeline (each foot in length representing 200 million years).

This fun and simple hands-on astronomy activity lets learners build a scale model of the universe with little more than adding machine tape.

This is a classic exercise for visualizing the scale of the Solar System.

This hands-on astronomy activity lets learners hunt for different objects in the night sky that contribute to stellar and planetary formation, using a Treasure List.