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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.

Pitch, Roll and Yaw: The Three Axes of Rotation
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In this activity (page 87 of the PDF), learners move their bodies to better understand the three axes of rotation: pitch, roll and yaw.

Pollution Patrol
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In this activity, learners explore how engineers design devices that can detect the presence of pollutants in the air.

Light is Made of Colors
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Learners observe different light sources, outdoors and indoors, using prism glasses (diffraction glasses) and color filters.

Making Music in Nature
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In this activity, learners will explore the ways natural materials can produce sounds. Appropriate for any age, learners can make individual music or create a symphony with others.

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.

Control a Bird’s Flight
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In this engineering design challenge, learners make a bird and then control its flight with attached strings.

Make a Green Gumball Black
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In this optics activity, learners use a shoebox, colored cellophane and sunlight to "change" the colors of gumballs. Learners will be surprised when the green and blue gumballs appear black!

Sound Mixer: A Multi-track Mixer of Animal Sounds
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This is a virtual representation of a sound mixer containing pre-looped sounds of animal, insect, and environmental noises.

Solar Water Heater
Learners work in teams to design and build solar water heating devices that mimic those used in residences to capture energy in the form of solar radiation and convert it to thermal energy.
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).

Colors in Nature
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In this activity, learners create colorful bead bracelets to wear outside while searching for matching colors in plants. Learners will be surprised by the variety of colors in nature.

Experiencing Parallax With Your Thumb
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In this activity, learners investigate parallax, a method used to measure distances to stars and planets in the solar system.

Personal Pinhole Theater
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Have you ever heard of a camera without a lens? In this activity, learners create a pinhole camera out of simple materials. They'll see the world in a whole new way: upside down and backwards!

Bring it into Focus
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In this activity (page 2 of PDF), learners play with a lens and a piece of paper to focus an image on the paper. Learners look at different things, and see how the lenses affect the image.

Tiny Pants Photo Challenge
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In this activity, learners use a simple trick of perspective to dress friends in tiny cutout clothing. Learners make tiny pants out of card stock and tape them to the end of a stick.

Polarized Sunglasses
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In this activity, learners explore how polarizing sunglasses can help diminish road glare.

Safe in the Sun
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In this activity on page 13 of the PDF, use a special plastic card that has been painted with a chemical that changes color when it is in UV light.
River Catcher
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In this activity (located at the top of the page), learners make an easy river strainer and see what they can catch.

Sunblock Investigation
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In this "Sid the Science Kid" activity, learners set up a simple experiment to find out how sunscreen counteracts the effects of the sun.