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Glow Up
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In this activity, learners explore chemiluminescence and fluorescence. Learners examine 3 different solutions in regular light, in the dark with added bleach solution, and under a black light.

Giant Lens
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In this activity about light and refraction, learners discover how a lens creates an image that hangs in midair.

Bone Stress
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In this optics activity, learners examine how polarized light can reveal stress patterns in clear plastic.

Mirrors and Images
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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.

Dark Adaptation
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In this activity (6th on the page), learners investigate how photoreceptors in the eye (rods and cones) "adapt" to low light conditions.

Do Plants Need Light?
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In this food science activity, learners conduct an experiment that demonstrates the importance of light to plants.

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

Why Are Bubbles So Colorful?
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In this activity, learners explore why they can see colors in bubbles and why they change.

Optical Morpher
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In this amazing activity about light and reflection, learners will use a pie plate and reflective strips from a mylar balloon to try to morph their face into a friend's.

Pupil to Pupil
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In this quick and simple activity about reflexes (at the top of the webpage), learners conduct a simple test to explore pupillary response.

Film Canister Farming
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In this hands-on botany activity, learners sprout vegetables in film canisters.

Mirror, Mirror on the Wall: Angles of Reflection
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In this optics activity, learners work in pairs to explore how mirrors work. Learners use tape to mark the angles needed to see each other's reflection in a wall mirror.

Easy PEAsy Seed Germination
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In this activity, learners determine the necessary conditions for pea seed germination.

Exploring Structures: Butterfly
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In this activity, learners investigate how some butterfly wings get their color.

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

Cylindrical Mirror
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In this activity, learners create a cylindrical mirror to see themselves as others see them.

Benham’s Disk
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In this activity (on page 2 of the PDF under GPS: Light and Color Activity), learners will see the illusion of colors produced by a rotating black and white image known as Benham’s Disk.

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

Seeing Your Retina
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In this quick optics activity, learners use a dim point of light (a disassembled Mini MagLite and dowel set-up) to cast a shadow of the blood supply in their retina onto the retina itself.

Look Into Infinity
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Learners use two mirrors to explore how images of images of images can repeat forever.