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In this activity, learners work with an adult to build a rocket and launcher out of a plastic 2-liter bottle, flexible plastic hose, plastic tubing, toilet paper tube, and duct tape.

In this physics demonstration, learners will be surprised when a lemon slice appears to magically levitate within a pint glass.

In this physics activity, learners recreate Galileo's famous experiment, in which he dropped a heavy weight and a light weight from the top of the Leaning Tower of Pisa to show that both weights fall

In this activity, learners make different shapes that hold exactly one mole of gas (air).

In this weather-related activity, learners make a portable cloud in a bottle.

In this collection of demonstrations, learners explore Newton's Laws of Motion.

In this activity, learners explore how objects can have positive, negative, or neutral charges, which attract, repel and move between objects.

In this quick activity (located on page 2 of the PDF under GPS: Balloon Fiesta Activity), learners will see the effects of convection and understand what makes hot air balloons rise.

In this design challenge activity, learners make a balloon hover at eye level for five seconds, and then make it move by creating air currents.

In this quick activity, learners observe how salinity and temperature affect the density of water, to better understand the Great Ocean Conveyor.

Learners observe and conduct experiments demonstrating the different properties of hot and cold materials.

Working in groups, learners model the continuous destruction and creation of ozone (O3) molecules, which occur in the ozone layer.

Yes, you can weigh your car by figuring out your wheel's tire pressure combined with the "tire's footprint." You'll need someone with a car, driver's license, and safety in mind.

In this trick, learners discover how to stick a straw to the palm of their hand, window door, or anywhere using static electricity.

This lesson challenges groups of learners to design and construct a wind generator with the most electrical output.

In this activity about weights and balances, learners create their own balance using paper cups. Then, learners explore how to compare the relative mass of objects.

This simple, yet surprising physics demonstration challenges preconceptions about forces, and demonstrates the strength of atmospheric pressure.

In this activity, learners explore how pneumatics and hydraulics could be used to produce movement in a robotic arm.

Learners observe a tank of water containing cans of diet and regular sodas. The diet sodas float and the regular sodas sink. All the cans contain the same amount of liquid and the same amount of air.

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