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In this activity, learners create a simple “top” from a CD, marble and bottle cap, and use it as a spinning platform for a variety of illusion-generating patterns.

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 activity, learners create a cylindrical mirror to see themselves as others see them.

This is a quick activity (on page 2 of the PDF under Butterfly Wings Activity) that illustrates how nanoscale structures, so small they're practically invisible, can produce visible/colorful effects.

In this activity, learners explore how nanosized structures can create brilliant color.

In this activity related to nanotechnology, learners observe some of the effects that result from creating a thin layer of material several nanometers thick.

In this activity, learners use their imaginations and picture a scene in their heads.

In this two-part activity, learners explore the properties of liquid crystals, which are responsible for why mood rings change color.

In this activity about light and perception, learners create and observe moire patterns.

In this activity, learners explore how polarizing sunglasses can help diminish road glare.

In this optics/mathematics activity, learners use two hinged mirrors to create a kaleidoscope that shows multiple images of an object.

This is an activity about turbidity, or the amount of sediment suspended in water.

In this activity, learners make their own pinhole viewer in order to measure the size of the sun.

In this math activity related to light, learners assemble a photometer and use it to estimate the power output of the Sun.

In this activity, learners overlap the three primary colors to see how all other colors are made.

In this activity, learners will create an optical illusion top. Learners will explore color mixing, physics and design through this activity.

In this optics activity, learners build a spy tool to secretly view things over walls or around corners.

In this demonstration/experiment, learners discover that different colors and materials (metals, fabrics, paints) radiate different amounts of energy and therefore, cool at different rates.

In this activity, learners build inexpensive kaleidoscopes using transparency paper and foil (instead of mirrors).

In this optics activity, learners examine how a transparent material such as glass or water can actually reflect light better than any mirror.