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Global Warming Science Fair Project

Carbon Dioxide and Global Warming

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Carbon Dioxide and Global Warming | Science Fair Projects | STEM Projects
Carbon dioxide is created when we burn fossil fuels like coal and gasoline. This carbon dioxide is released into the atmosphere and can cause the temperature of our planet to increase gradually over time. Let's find out how!

Hypothesis

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

Method & Materials

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.

Results

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.

Why do this project?

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

Also Consider

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

Full project details

You can find additional information and details for this science fair project here. Have fun exploring!

Related videos

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