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Straws and Airplanes
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Create airplanes from straws and geometric shapes. Test them out to see how far they can fly, or how accurately they can be aimed.

Waterproof that Roof!
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In this activity, learners explore how engineers have improved roofing designs and materials in order to protect the contents of buildings.

Statue Display Tower
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In this activity, learners design, build, test and redesign a display tower that will meet a specific set of criteria and constraints.

Self-Assembling Dessert Toppings
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This is an activity (located on page 3 of the PDF under Self-Assembly Activity) about self-assembly, the ability of molecules to assemble themselves according to certain rules.

Rubber Band Car
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In this design challenge activity, learners build a car that can travel at least four feet using rubber band power and use the design process to debug problems.

Introduction to the New Chain Gang
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In this activity, learners use pop-beads to understand the characteristics and properties of polymer chains.

Kid Machine
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This activity is on page 3 (continued on page 2) of the pdf, part of the Simple Machines Discovery Box. In this fun activity, learners "create" a complex machine by simulating the parts in action.

Bounce vs. Thud Balls
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Learners compare the properties of two balls that appear identical. One ball bounces, while the other ball "thuds." The “bounce” ball is made of the polymer polybutadiene (-C4H4-).

Be a Plumber
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In this activity (located on page 6 of the PDF), learners explore the ways people access water in their homes.

Make a Garbage Bag Kite
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Make a kite out of a garbage bag, shower curtain, painting tarp--anything light, thin, flexible and plastic!

Bouncing Balloons
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In this sports-themed engineering activity, learners create super bouncy balls out of balloons. Learners brainstorm, test their designs, and share results.

Snow Day!
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In this activity (on pages 4-5), learners make fake snow by adding water to the super-absorbant chemical from diapers, sodium polyacrylate.

Build a Bubble Circuit
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In this engineering design challenge, learners make a bubble maze that allows bubbles to move through a series of “on” and “off” switches.

All Wound Up
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In this activity, learners build a racecar using only a rubber band, spool, straw, and paper clip! This racer is a classic toy that zips across a flat surface.

Speak to Me
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In this activity, learners will create a speaker using a paper cup, magnet, and enameled wire. Also included in this activity is a Mr.

Make a Light Fountain
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In this optics activity, learners make a "light fountain" from a clear plastic bottle, flashlight, and other simple materials.

Assembly Line
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In this activity, learners work individually to assemble a product and then work in teams to design, construct, test, and redesign an assembly line process whose product must meet specific quality con

Whirling Windmills
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In this activity, learners are challenged to design and construct a windmill to harness the power of wind.

Jump Into Design: Understanding the Design Process
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In this series of activities (page 5), students are introduced to the design process.

Cup Sailing Game
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In this online Flash game, learners will captain a sailing challenge, adjusting boat direction and sails, seeking the way to take greatest advantage of varying wind speeds and directions to catch the