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Learners use two mirrors to explore how images of images of images can repeat forever.

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.

Challenge popular misconceptions, learners explore how a mirror actually reflects an image in this activity.

In this activity about light and reflection, learners discover that what you see is often affected by what you expect to see.

In this activity, learners discover that it is difficult to trace a curve by using its reflection in a mirror. Use this activity to discuss how the brain works.

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.