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In this optics activity, learners explore how many objects they can see in a set of mirrors (hinged like a book) at various angles.

In this optics activity, learners create a ripple tank from household materials to study waves. Learners build the tank and then explore by making various types of waves.

In this optics activity, learners experiment with polarizers (small dark rectangles) to examine light intensity.

In this optics activity, learners explore color by examining color dots through colored water and the light of a flashlight.

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

In this optics activity, learners make a "light fountain" from a clear plastic bottle, flashlight, and other simple materials.

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

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.

In this optics activity, learners create flip books by drawing an image like an eye opening and closing on 24 small pages of paper.

In this optics activity, learners split white light into all its component colors using three household items: a compact disc, dishwashing liquid, and a hose (outside).

In this optics activity, learners use glass and water to demonstrate total internal reflection (TIR).

In this optics activity, learners make a lens and explore how the eye manipulates the light that enters it.