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

Learners mix a solution of luminol with hydrogen peroxide to produce a reaction that gives off blue light.

Do you have a hard time matching paint swatches with your furniture? When you consider human perception, color is context dependent.

In this optics activity, learners explore diffraction by adding wax blocks to a ripple tank. The wedge-shaped blocks act as obstacles that the wave must bend around.

Look at pictures through different color filters and you'll see them in a new way. People have used color filters in beautiful photography or sending secret messages.

This science activity demonstrates the dominant eye phenomena. What does your brain do when it sees two images that conflict?

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.

In this optics activity, learners explore interference by adding wax blocks to a ripple tank.

In this activity, learners use clear nail polish to create a beautiful iridescent pattern on black paper. Learners discover that a thin film creates iridescent, rainbow colors.

In this activity, learners use a laser pointer to project a microscopic image of a liquid sample suspended from the tip of a syringe.