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Puff Car
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In this activity, learners are challenged to design a wind-powered car using only a handful of household materials.

Milk Plastic
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In this activity, learners transform everyday milk into small plastic figurines and jewelry. Use this activity to introduce learners to monomers and polymers.

Cup Draw (Low Tech)
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In this activity, learners construct drawing machines using a cup, some markers, and a battery pack. The markers act as "legs" for the machine, making a drawing that records as it moves.

Clipper Creations
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In this activity, learners create a working model of a nail clipper. This activity helps learners learn the basic principles of simple machines, engineering design and model building.

Reflective Solar Cooker
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In this activity, learners use the Sun's energy to cook marshmallows. Learners construct the solar oven out of simple everyday materials.

Ships Ahoy!
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The goal of this activity is to design the fastest sailboat or one that carries the most treasure.

Hand Biometrics Technology
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In this activity, learners explore how engineers incorporate biometric technologies into products as well as the challenges of engineers who must weigh privacy, security and other issues when designin

Exploring Earth: Temperature Mapping
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This activity models the way Landsat satellites use a thermal infrared sensor to measure land surface temperatures.

Head, Shoulder, Knees and Toes...and Hands, Fingers and Back
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Are fingers the only place on the body where we use our sense of touch? In this activity (6th activity on the page), learners test the touch sensitivity of different parts of the body.

Interactive Gumball Machine
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In this activity, learners review the history of gumball machines and explore potential and kinetic energy, while working in teams to build a gumball slide.

Aerial Imagery
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This activity (on page 2 of the PDF under SciGirls Activity: Earthquakes) is a full inquiry investigation into aerial imagery.

Light Bulb Challenge
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In this activity, learners explore the difference between compact fluorescent light (CFL) bulbs and traditional incandescent bulbs.

Cup Draw
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In this activity, learners construct drawing machines using a cup, some markers, and a cricket to control the movement. A programmed LEGO RCX or Cricket is required for this high-tech version.

Water Rocket Launch
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In this activity, learners explore rocketry and the principals of space flight.

How can You Demonstrate the Efficiency of Different Light Bulbs?
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In this activity, learners actually feel the difference in energy required to light two different types of light bulbs: incandescent light and LEDs.

Sort It Out!
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In this activity, learners explore how engineers have developed sorting systems which integrate into manufacturing and packaging processes. Learners explore how coins are made.

Catapult
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In this activity, learners build mini catapults using paint paddles and a spoon. Use this activity to introduce learners to forces and projectile motion.

Paper Table
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In this design challenge activity, learners use tubes of newspaper to make a table that’s at least eight inches tall and strong enough to hold a heavy book!

Hail Storm House
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In this activity, learners construct hail-proof houses using recycled materials to discuss storm readiness and safety.

The Parachuting Egg
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In this activity, learners work in groups to design a parachute out of household items that keeps an egg secure when dropped from a certain height.