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This design challenge is an open-ended exploration of linkages, a group of parts connected by hinges, and the types of motion they can create.

This activity (on page 2) explores how sensing is part of robotics. Learners try tying their shoes with different constraints.

Perform this classic inertia demonstration to illustrate the transfer of potential energy to kinetic energy.

In this activity, learners build a hot air balloon using just a few sheets of tissue paper and a hair dryer.

In this activity (page 59 of the PDF), learners spin and observe false eyelashes in jars of water (prepared at least 1 day ahead of time) to investigate the effects of different types of motion on the

In this design challenge activity, learners modify a cup so it can carry a marble down a zip line and also drop it onto a target.

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

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

In this physics demonstration, learners are challenged to insert a straw the furthest into a potato.

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.

In this activity, learners string a line across the room and build cable cars that can move from on end to the other.