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

In this activity, learners explore the properties of paper by constructing and modifying paper airplanes.

In this activity, learners build an old-fashioned paddle boat out of simple materials.

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

Learners will build and experiment with their own windmills made from simple household materials.

In this online activity, learners use a realistic mass and spring laboratory. They hang masses from springs and adjust the spring stiffness and damping.

In this physics crime lab or demonstration, learners pretend they are criminologists and must find the "muzzle velocity" (speed of the bullet as it leaves the gun) of a gun used to commit a crime.

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.

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

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 explore physics by building a catapult that launches marshmallows with household objects.

In this indoor or outdoor demonstration, use a large and small ball to illustrate conservation of energy and momentum.

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

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

In this activity, learners explore how two cylinders that look the same may roll down a ramp at different rates.

In this design challenge, learners will create their own roller coaster using household objects for the track and a marble or small ball as their cart.

When baseball was in its infancy, the ball had plenty of bounce. Today's baseball may not seem to have bounce to it at all; if you drop a ball on the field it won't bounce back.

In this physics activity (page 8-9 of the PDF), learners will explore wind energy. They will build their own windmill and see how energy from wind can be converted into a useable form.

In this activity, learners build a special rolling can that returns back to you when you push it forward. Use this activity to demonstrate the transfer of energy between kinetic and potential energy.

Learners attach an egg to a rubber-band bungee cord and drop the egg.