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“Exploring the Solar System: Big Sun, Small Moon” is a hands-on activity that explores the concept of apparent size and allows visitors to experience this phenomena using familiar objects—a tennis bal

In this activity, learners build a simple pinhole viewer. They use this apparatus to project images from a variety of light sources, including a candle, the Sun, and the Moon.

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

In this activity (on page 14 of PDF), learners use a pan full of flour and some rocks to create a moonscape.

This fun and simple hands-on astronomy activity lets learners explore the difference between telescope magnification and resolution.

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.

In this activity, learners will use Google Sky to observe features of the night sky and share their observations.