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Learners develop an understanding of air pressure in two different activities.

Learners see convection currents in action in this highly visual demonstration. Sealed bags of colored hot or cold water are immersed in tanks of water.

Learners build particulate matter collectors--devices that collect samples of visible particulates present in polluted air.

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.

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 a class demonstration, learners observe a simple water cycle model to better understand its role in pollutant transport.

In this demonstration, learners observe vinegar and baking soda reacting to form carbon dioxide (CO2) gas.

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

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

Learners will build a lung model to understand how their lungs and diaphragm work to make them breathe.

Through doing these hands-on activities, learners explore the environmental consequences associated with fossil fuel usage.