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The Bent Pencil
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In this optics activity, learners explore how light bends and affects what we see.

Lose a Glass in a Glass
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In this optics activity, learners use paint thinner to make a small jar seem to disappear inside a larger jar.

Make a Telescope
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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.
Interference in a Ripple Tank
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In this optics activity, learners explore interference by adding wax blocks to a ripple tank.

Make a Green Gumball Black
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In this optics activity, learners use a shoebox, colored cellophane and sunlight to "change" the colors of gumballs. Learners will be surprised when the green and blue gumballs appear black!