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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 hands-on astronomy activity allows you to create a “cutaway” telescope to clearly show how reflector and refractor telescopes work.

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

In this international citizen science activity, learners measure their night sky brightness and submit their observations into an online database.

This fun and simple hands-on astronomy activity illustrates the value of supernovae in the universe.

This fun and simple hands-on astronomy activity illustrates the path of light as it reflects off of mirrors and how this is used in telescopes.

This fun hands-on astronomy activity uses a variety of simple props to help learners understand why they see what they see in a telescope.