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

In this activity, learners analyze a fictionalized report of life on Mars, based on a real NASA satellite photo, and explore how to separate scientific fact from fiction.

In this activity (page 2 of PDF), learners play with a lens and a piece of paper to focus an image on the paper. Learners look at different things, and see how the lenses affect the image.

In this activity, learners will make a thaumatrope, an old-fashioned optical illusion that dates back to the 1820s.