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Power Play
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In this online game, learners build complicated machines to complete simple tasks. The game starts with a power source on one side of the screen and the task on the other side.

Rocket Pinwheel
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This is an activity about motion, power, air and Newton’s Third Law of Motion, which states that for every action there is an equal and opposite reaction.

Trip Wire
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In this activity, learners build simple alarms that they can attach to anything, such as a drawer or doorway. This activity introduces learners to electricity, circuits, and currents.

Exploring at the Nanoscale
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This lesson focuses on how nanotechnology has impacted our society and how engineers have learned to explore the world at the nanoscale.

Motor Bird
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In this activity, learners build a bird that flies in place with help from a motor, wire, and some straws.

Earth Attractions
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In this activity, learners build and test a compass. Learners work in pairs and pretend they are stuck in the wilderness at night.

Paddle Boat
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In this activity, learners build an old-fashioned paddle boat out of simple materials.

Kites
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In this engineering/design activity, learners make a kite, fly it, and then work to improve the design. Learners explore how their kite design variations affect flight.

A Merry-Go-Round for Dirty Air
Learners build a model of a pollution control device--a cyclone. A cyclone works by whirling the polluted air in a circle and accumulating particles on the edges of the container.

Floating Candles
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In this chemistry activity, learners observe a combustion reaction and deduce the components necessary for the reaction to occur.

Does Size Make a Difference?
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In this activity on page 15 of the PDF, discover how materials and physical forces behave differently at the nanoscale.

Make a "Mummy"
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The Ancient Egyptians used a naturally-occurring salt from the banks of the Nile River, called natron, to mummify their dead.

Ziptop Bag Chemistry
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In this chemistry activity, learners perform three chemical reactions in a sealed zip-top bag. Learners will record their observations and classify the changes as chemical or physical.

Glider
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In this activity, learners construct a paper glider to experiment with aerodynamic forces.

What Causes Wind?
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In this sunny day experiment, learners measure and compare how quickly light and dark colored materials absorb heat.

Make Your Own Rain Stick
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This activity provides step-by-step instructions on how to build a rain stick, a musical instrument originating in South America.

Speedboat
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In this activity, learners build a speedboat using paint paddles, a propeller, and film canister. Learners attach a simple circuit and motor to the boat to power the propellers.

Living Clocks
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In this activity about daily rhythms (on page 17 of the PDF), learners will explore circadian patterns in humans, animals and plants.

Double Horn
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In this activity, learners explore sound by constructing their very own instruments using PVC pipes, soda bottles, and a straw.

Lego Mania
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In this activity, learners will put together towers using building bricks, then take the tower apart and challenge themselves to use the same bricks used to build a bridge.