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Perspectives: Powers of 10
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In this activity, learners complete a series of drawing activities to explore scale and powers of 10. Learners first trace each other on 1-meter-square pieces of paper.

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.
The Ripple Tank
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In this optics activity, learners create a ripple tank from household materials to study waves. Learners build the tank and then explore by making various types of 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.
The Bent Pencil
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In this optics activity, learners explore how light bends and affects what we see.

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.

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.

Make a Light Fountain
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In this optics activity, learners make a "light fountain" from a clear plastic bottle, flashlight, and other simple materials.

Lose a Glass in a Glass
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In this optics activity, learners use paint thinner to make a small jar seem to disappear inside a larger jar.
Moving Pictures
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In this optics activity, learners create flip books by drawing an image like an eye opening and closing on 24 small pages of paper.
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.
Transparent Gelatin
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In this optics activity, learners explore how they can make gelatin stop light, but not stop them from seeing fruit suspended within.
Splitting White Light
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In this optics activity, learners split white light into all its component colors using three household items: a compact disc, dishwashing liquid, and a hose (outside).

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.

Bending Light
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In this optics activity, learners make a lens and explore how the eye manipulates the light that enters it.

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.