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In this activity, learners will explore light with reflective surfaces. Learners will make predictions and share their observations as they experiment with directing a beam of light.

Learners observe different paper samples under ordinary room light and under a black light to learn some of the chemical differences between different types of paper.

In this activity, learners use transparent tape and polarizing material to create and project beautifully colored patterns reminiscent of abstract or geometric stained glass windows--no glass required

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

In this fun optics activity, learners explore principles of light, reflection (mirrors), and perception. Learners work in pairs and sit on opposite sides of a "two-way" mirror.

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

In this STEAM activity, learners create a "pixel tube" to explore reflections of light and color mixing.

In this activity, learners will explore how light can refract or break apart into different colors.

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

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

In this activity related to light and perception, learners use a pinhole in an index card as a magnifying glass to help their eye focus on a nearby object.

In this activity, learners will build a model of a nebula using cotton balls and colored water. Astronomers photograph nebulas and add colors to provide information about the nebula's composition.

This activity provides instructions for building a mirrored tube--a smaller and simpler version of a submarine's periscope--that lets you see around corners and over walls.

In this activity, learners will create their own simple shadow puppets, and experiment with light and shadow while playing with them.

In this international citizen science activity, learners measure their night sky brightness and submit their observations into an online database.

In this activity, learners experiment with shadows and light sources to understand the relationship between the angle illumination and the shadow's length.

In this activity, learners investigate how some butterfly wings get their color.

In this activity, learners use simple materials to create giant bubbles.

In this activity, learners will see how UV light affects colors over time by making their own sunprint on construction paper.

In this outdoor activity, learners explore UV rays from the Sun and ways to protect against these potentially harmful rays.