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Learners conduct four simple experiments to demonstrate the effects of air pressure.

Learners investigate the concept of humidity by using a dry and wet sponge as a model. They determine a model for 100% humidity, a sponge saturated with water.

In this activity (page 1 of PDF under SciGirls Activity: Forecasting), learners will construct an air cannon by cutting a hole in the bottom of a bucket and stretching a garbage bag over the other end

Learners engage in close observation of falling objects. They determine it is the amount of air resistance, not the weight of an object, which determines how quickly an object falls.

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

In this health activity, learners explore breathing, lungs and asthma. Learners test their lung capacity by blowing air into balloons.

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

In this physics activity, learners will build their own parachutes out of tissue paper. They will explore the effects of weight, height, and design on the parachutes' speed and stability.

Learners observe a flask with a balloon attached over the mouth and inverted inside the flask.

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

In this weather activity, learners build their own wind detector and test for the presence of convection currents in their indoor location.

Learners make a skydiver and parachute contraption and launch it. They see that the drag created by air resistance slows the descent of skydivers as they travel back to Earth.