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Make Money Appear Before Your Eyes
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In this optics activity, learners use water to make a coin "appear" and "disappear." Use this activity to demonstrate how light refracts and introduce light as waves.
Mix and Match
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In this optics activity, learners explore color by examining color dots through colored water and the light of a flashlight.
Pinhole Magnifier
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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.
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.
Film Canister Farming
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In this hands-on botany activity, learners sprout vegetables in film canisters.
Shadow Dance
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In this activity, learners experiment with shadows and light sources to understand the relationship between the angle illumination and the shadow's length.
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.
What Causes Rainbows?
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In this activity, learners explore how and why rainbows form by creating rainbows in a variety of ways using simple materials. Learners create rainbows indoors and outdoors.
Spinning Your (Color) Wheels
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In this optics activity, learners use everyday materials to make a color wheel. When learners spin the wheel like a top, they will be surprised to see all the colors mixing together to appear white.
Disappearing Glass Rods
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In this optics activity, learners discover how they can make glass objects "disappear." Learners submerge glass objects like stirring rods into a beaker of Wesson™ oil to explore how the principles of
Why is the Sky Blue?
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In this activity, learners create a "mini sky" in a glass of water in a dark room.
Mini Zoetrope
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In this activity (posted on March 27, 2011), learners follow the steps to construct a mini zoetrope, a device that produces an illusion of action from a rapid succession of static pictures.