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Trebuchet Toss
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In this activity, learners explore trebuchet design. Teams of learners construct trebuchets from everyday materials.

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

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.

Design and Build a Better Candy Bag
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In this activity, learners explore how product design differences can affect the success of a final product -- in this case a bag for holding candy.

Irrigation Ideas
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In this activity, learners explore how civil engineers solved the challenge of moving water via irrigation.
Leaves: Designing Leaf Arrangements on a Branch
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In this hands-on activity, learners investigate the functional design of leaves on a tree.

Marble Run!
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This activity (on page 2 of the PDF under SciGirls Activity: Luge) is a full inquiry-based challenge related to motion and design optimization.

Move That Lighthouse!
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In this activity, learners explore how engineers work in a team to solve problems.

Rescue Rover
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In this activity, learners explore how rescue devices are designed to aid professionals during emergency situations.

Can You Canoe?
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In this activity, learners explore how engineering has impacted the manufacturing of canoes over time, including the development of new, durable, and lighter materials.

Tennis Anyone?
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In this activity, learners explore sports engineering and advanced materials development.

EEEEK--A Mouse!
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In this activity, learners explore the concept of how engineering solved the problem of human/computer interface.

Telescoping Periscope
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In this activity, learners explore the many uses of periscopes and how this simple device was designed and is used in many applications.

Cast Your Vote
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In this activity, learners explore how voting systems have changed with engineering advances over time. Learners work in teams to design their own voting system using easy to find materials.

Rubber Band Racers
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In this activity, learners explore the design of rubber band powered cars. Learners work in teams of "engineers" to design and build their own rubber band cars out of everyday items.

Pendulum Time
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In this activity, learners explore how the pendulum has been a reliable way to keep time for centuries.

Chair Lift Challenge
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In this activity, learners explore the unique challenges in transportation engineering, such as devising a method for skiers or hikers to get to the top of a mountain.

Tall Tower Challenge
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In this activity, learners explore the design of tall structures such as skyscrapers and telecommunication towers.

Pop! Rocket Launcher
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In this activity, learners construct a simple air pressure launcher for paper rockets.

Dispenser Designs
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In this activity, learners explore how engineers work in a team to solve problems.