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Learners drop two different masses of play dough and observe how long it takes them to hit the ground.

In this genetics activity, learners discover how to extract DNA from green split peas.

In this activity, learners design a bungee jump for an egg using nylon stockings.

In this design challenge activity, learners build a device to carry a Ping-Pong ball from the top of a zip line to the bottom in four seconds (or less!).

In this activity, challenge learners to design a roller coaster ride for a marble using cardboard and other simple materials.

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

This lesson guide includes six simple and quick activities to help learners better understand Bernoulli's Principle.

Learners design their own experiment to investigate how pollution diffuses through ground material.

In this hands-on activity, learners will become familiar with the special adaptations of rainforest plants and discover the conditions needed for tropical trees to survive along with what can impinge

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.

In this activity (located on page 2), learners will construct tiny model geysers out of film canisters, warm water, and antacid seltzer tablets.

In this activity, learners will engineer three different parachutes to test how well each one works.

In this activity, challenge learners to keep an ice cube from completely melting in 30 minutes. Learners engineer a box or wrap to prevent an ice cube from melting.

In this activity (on pages 11-12 of PDF) learners create models of lava layers that have formed on the moon.

In this hands-on activity, learners build their own kaleidoscopes and explore how light can reflect of off surfaces such as mirrors, to produce beautiful patterns.

In this design challenge activity, learners build a boat that can hold 25 pennies (or 15 one inch metal washers) for at least ten seconds before sinking.

In this activity, learners will repurpose an old t-shirt to create their own yarn or string.

This game uses a modified Uno deck to review concepts related to stem cell research and diabetes.

In this design challenge activity, learners build a shock-absorbing system that will protect two “astronauts” when they land.

In this Bob the Builder(TM)-themed activity, learners explore the 3Rs (Reduce, Reuse, Recycle) by rotating through several activity stations.