The hypothesis is that higher carbon dioxide content in the air will contribute to warmer temperatures.

You will fill three water tanks with a layer of black soil, blow air from your lungs into one tank, and fill the third tank with air from a car exhaust. You will then measure the temperature of the air in the tanks using an infrared thermometer.

You will need three incandescent lamps, three fish tanks with air tight covers and a small 15-20mm diameter opening, 300 mm rubber hose 15-20 mm in diameter, 1meter rubber hose 15-20 mm in diameter, 1 air tight plastic bag, 1 infrared thermometer, stop watch, masking tape, 3 kg of black colored soil, a car, and an assistant.

The results show that the first tank with the normal air cools down the quickest and the third tank, with the air from the car exhaust, cools down the slowest. This proves that higher concentrations of carbon dioxide in the air will slow down the rate at which the temperature of the air falls.

This science project is interesting because it shows how carbon dioxide affects global temperatures and how it can lead to global warming.

Experiment variations include using water to replace the soil in the tank and using a hair dryer to obtain a higher starting temperature.

Hey there! Here are some awesome videos about this science project that we think you'll really like. They're not only super fun, but they'll also help you learn more about the science behind the project. So sit back, relax, and get ready to have some fun!!