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Learners model the Sun-Earth-Moon system to show what causes the Moon's appearance to change when viewed from the Earth.

In this activity, learners act as the Earth and observe how different angles between the Sun, Earth, and Moon affect the phases of the moon we see each month.

In this activity, learners explore how distance can affect the way we perceive the size of an object.

This quick demonstration (on page 11 of PDF) allows learners to understand why scientists think water ice could remain frozen in always-dark craters at the poles of the Moon.

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

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