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In this design challenge, learners will create wind-powered contraptions to transport a load, such as a cupcake or another small object, and test to see if they work.

In this collection of demonstrations, learners explore Newton's Laws of Motion.

In this activity, learners build inexpensive pulley assemblies from pulley wheels used for sliding screen door replacement or from clothesline spreaders.

Groups of learners are provided with a generic car base and an egg. Their mission: design a device/enclosure to protect the egg on or in the car as it rolls down a ramp with increasing slopes.

To learn how friction affects motion, learners build a measurement tool from a rubber band and other simple materials.

Learners build a simple hovercraft using air from a balloon to levitate a craft made from a compact disc (CD).

In this activity, learners explore the concept of how aerospace engineering has impacted sports, specifically exploring the design of golf balls.

In this activity, learners explore motion, energy, and electricity by constructing bottle cars that run on motors.

In this activity, learners explore motion and airflow by setting two aluminum cans on their side and blowing air in-between them.

In this physics activity, learners construct a small-scale version of a classic carnival game.

In this activity, learners learn about friction by making their own miniature hovercraft.

In this activity, learners construct speedy vehicles made out of paper plates and powered by twisted rubber bands.

In this design challenge activity, learners build a rubber band-powered rover that can scramble across the room.

In this activity, learners explore the concept of friction and how ball bearings reduce friction.

In this hands-on activity, learners use an assortment of (mainly household) items to complete Rube Goldberg-type challenges.

In this activity, learners will use a compact disc to build an air puck that can glide across a smooth tabletop. The puck glides with almost no friction on a cushion of air escaping from a balloon.

A design challenge that takes paper airplanes into an entirely different direction: a magnus glider uses cups and and rubber bands to create a glider that uses the same forces that a curveball (from b

The goal of this activity is to build a miniature bobsled that is either the fastest or the slowest. Learners use recycled materials to design, build, and test their bobsled on a bobsled track.

In this fun and, at times, hilarious force and motion activity, learners will use household objects to build a crazy contraption and see how far they can get a tennis ball to move.

This is an activity about friction as well as kinetic and potential energy.