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Did you know that you would be a different age if you lived on Mars? It's true!

In this activity (on page 5 of PDF), learners use dry ice and household materials to make scientifically accurate models of comets.

In this fun and simple hands-on astronomy activity, learners construct a model of our place in the Milky Way Galaxy and the distribution of stars, with a quarter and some birdseed.

In this activity, learners build models of comets, using edible materials, to learn about comets' structure.

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