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In this optics activity, learners make a simple telescope using two lenses and a cardboard tube. Learners construct the telescope and then calculate its magnification.

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

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.

In this activity, learners test the Law of Reflection based on experimental evidence. Learners produce raw data and explanations based on their data: pencil tracings of incident and reflection rays.

In this activity about the solar system, learners use various light sources to examine ice with different components to understand how NASA studies planets and moons from space.