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In this activity, learners create night lights using a plastic cup, programmable PICO Cricket, tri-color LED, and sensor.

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

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.

This fun activity uses simple materials such as milk cartons and mirrors to introduce the ideas of optics and visual perception.