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In this activity, learners build a machine made of craft sticks to multiply the levering motion of their hands and create a device that bends and extends.

In this activity, learners build a toy that flies in circles. This activity introduces learners to center of mass, torque, and rotational motion.

In this activity, learners build a bird that flies in place with help from a motor, wire, and some straws.

In this physics activity, learners build a toy with a figure that spins around like a gymnast on the high bar.

Hooray! In this design challenge activity, learners invent a device that launches a spoonful of confetti into the air. Learners are encouraged to create the biggest cloud of confetti possible.

In this activity, learners build mini-basketball courts using cardboard and measuring spoons. Use this activity to introduce learners to catapults, forces, and levers.

In this activity, learners build a mini crank machine to make a bird "fly." This engineering activity introduces learners to automata, rotational motion, cranks and cams.

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

In this activity, learners build a seesaw powered by magnets.

In this dynamic activity, learners build a catapult that launches projectiles, such as marshmallows.

In this activity, learners build a figure that moves and "comes to life" when they pull its string.

In this project, students explore how levers work, by making a puppet with moving limbs.