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Balancing Act
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In this activity, learners will build thier own balance scale. Learners will explore weight and comparison through this activity.

Make and Fly a Helicopter
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Learners follow the template to build and fly a paper helicopter.

Mechanical Grabber
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In this engineering activity, challenge learners to make a "grabber" that can pick up trash. Learners use simple materials to create pinchers that can grab small items.

Topographic Investigation: Map an Underwater Surface
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In this activity, learners create a map of a hidden surface using a "sounding stick" -- a technique similar to how underwater maps were once made.
Dowels and Rubber Bands I
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If you have 3-foot dowels and rubber bands, you can can started on this fun and open design challenge. You can make structures big and small: make it so you can fit your parent into it!

Hang Time
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Learn how to make and fly a paper helicopter! This simple activity includes a template (for the copter "blades") and instructions for folding, flying, and testing designs.

Forward-Reverse Switch
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In this activity, learners build a switch to turn electrical circuits on and off.

Build a Better Roof
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In this activity, learners will engineer a roof using simple materials to protect a construction paper person from a rainstorm.

Turning the Air Upside Down: Convection Current Model
Learners see convection currents in action in this highly visual demonstration. Sealed bags of colored hot or cold water are immersed in tanks of water.

Speed, Eggs and Slam!
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In this fun hands-on activity, learners create a safety device to protect an egg "passenger" in a toy car crash. Learners experiment with different solutions to this very problem.

Roller Coasters
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In this activity learners will build roller coasters and test them using small balls or marbles.

Puff Mobile
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In this engineering activity, challenge learners to design a car using only 3 straws, 4 Lifesavers™, 1 piece of paper, 2 paper clips, tape, and scissors.

Program a Friend
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In this activity (on page 2), one person "programs" the other like a robot to move through a space, trying to get them to avoid obstacles and reach a goal.

Convection Demonstration
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In this quick activity (located on page 2 of the PDF under GPS: Balloon Fiesta Activity), learners will see the effects of convection and understand what makes hot air balloons rise.

Pollinator Play
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In this activity, learners will build a bee hotel for pollinators. Learners will explore building and ecology through this activity.

Film Canister Rocket
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In this activity, learners construct and launch rockets using simple materials and their understanding of chemical reactions.

Design a Submarine
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Learners act as engineers and design mini submarines that move in the water like real submarines.

Static Water
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In this activity, learners will use static elecricity to bend a stream of water without touching it. Learners will explore physics and cause and effect through this activity.

Shrinking Polymers
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In this activity, learners discover that some plastics will shrink when you get them hot. Learners bake polystyrene in a regular oven and discover what happens.

Stack 'Em Up
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In this simple and fun activity, learners build a tower of cups to explore distribution of weight. Learners make predictions about their towers and test their designs.