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Everybody loves boomerangs! In this activity about force and motion, the learners will experiment with boomerangs and explore how they work. This is a great activity to get learners up and moving.

In this activity, learners explore the concept of insulation by trying to keep Olaf the Snowman from melting. This activity encourages critical thinking and problem solving.

In this activity, learners will engineer their own weather vane. This activity includes step-by-step instructions with pictures and a "What's Happening?" section explaining how the activity worked.

Learners place water and part of an antacid tablet in a film canister. The reaction creates a gas reaction that launches the film canister like a rocket.

In this activity, learners use simple, everyday materials to experiment with balls and ramps.

In this activity (on page 14 of PDF), learners use a pan full of flour and some rocks to create a moonscape.

In this sunny day activity, learners compare how a cup of water and a cup of tonic water reflect or refract light in the sun.

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

Everybody loves bubbles, and this is the best bubble recipe ever!

In this activity, learners will trick out their bike with crafts and flair. Learners will explore symmetry, cause and effect and design through this activity.

In this activity, learners explore why they can see colors in bubbles and why they change.

Learners trace, cut out and fly a boomerang, outdoors or in a large indoor space.

An ordinary camera has a lens that makes an image on film. In a pinhole camera, a small hole replaces the lens.

Use this Moon Map Guide to help learners identify features on the Moon, while looking through a telescope.

In this activity, learners investigate wind by comparing the force of wind in different locations. Learners build wind-o-meters out of wooden sticks and strips of paper.

This activity shows you how to make amazing crystal spikes using Epsom salt and the sun.

In this engineering design challenge, learners make a bird and then control its flight with attached strings.

This activity (9th activity on the page) about hearing demonstrates to learners the importance of having two ears.

In this optics activity, learners use a shoebox, colored cellophane and sunlight to "change" the colors of gumballs. Learners will be surprised when the green and blue gumballs appear black!

Explore the effects of gravity on a slowly falling object: a parachute you make out of plastic bags, string and stones.