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Monster Mallows
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In this activity, learners explore how ordinary marshmallows expand when heated in a microwave.

Divers
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Learners experiment with a 2-liter plastic bottle containing water and four “divers." The divers consist of open, transparent containers with the opening points downward.

Underwater ROV
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In this online Flash game, learners will explore a coral reef using an underwater remotely operated vehicle (ROV).

Composting Bioreactor
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In this activity (page 19 of the PDF) learners will create a soda bottle bioreactor by exploring the science of composting, comparing variables such as reactor design, moisture content, and nutrient r

How Can Gravity Make Something Go Up?
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In this activity, learners use cheap, thin plastic garbage bags to quickly build a solar hot air balloon. In doing so, learners will explore why hot air rises.

Fused Plastic Wallet
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In this up-cycling activity, learners recycle plastic bags and repurpose them into useful wallets.

Scream Cup
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In this activity, the learner will experiment with the physics of sound production while making a sound making toy. The activity includes a video with step by step instructions.

Jell-O Model of Microfluidics
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This activity uses Jell-O(R) to introduce learners to microfluidics, the flow of fluids through microscopic channels.

Design a Microexpression Zoetrope
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In this engineering design challenge, learners animate a facial expression and make a machine (zoetrope) that plays the animation back.

Gas Production: Blow up a balloon!
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In this classic reaction, learners baking soda and vinegar in a soda bottle to produce carbon dioxide (CO2) gas. This gas inflates a balloon.

Ocean Acidification in a Cup
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Ocean acidification is a problem that humans will have to deal with as we release more and more carbon dioxide into the atmosphere.

CD Spectroscope
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In this activity, learners use an old CD to construct a spectroscope, a device that separates light into its component colors.

Kinetic Sculpture: Program the Pico Cricket to Make Your Art Light Up or Spin
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Use a Pico Cricket (micro-controller) to animate your art! You can program a Pico Cricket to make your art spin, light up, or make music.

Launch It
Add to list DetailsIn this design challenge activity, learners use a balloon and other simple materials to design an air-powered rocket that can hit a distant target.

Electric Paddle Boat
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In this activity, learners build an electric two-paddle boat using paint paddles, plastic knives, and empty water bottles.

Toxic Popcorn Design Challenge
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In this activity, learners explore the engineering design process (EDP)—the process engineers use to solve design challenges.

Shipping for Survival
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In this activity, learners explore how packaging engineers develop customized shipping and packaging containers to meet the needs of many different industries.

Why Circulate?
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In this activity related to the human circulatory system (on page 10 of the PDF), learners observe the dispersion of a drop of food coloring in water, draw conclusions about the movement of dissolved

Engineered Music
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In this activity, learners explore how musical instruments are engineered.

Twisted Tesselations
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In this activity (on pages 41-47 of PDF), learners explore tesselating geometric patterns (repeated shapes, similar to the art of M.C. Escher).