blue sky with sun

The greenhouse gas effect is caused by gases in the Earth’s atmosphere trapping heat from the sun. Without the Earth’s atmosphere, the planet would be much colder. Carbon dioxide (CO2) is one of these natural gases – it is part of our air. We exhale CO2 with every breath we take. In addition to natural sources, CO2 is produced by all kinds of combustion processes. Car exhaust fumes, for example, consist largely of CO2. Man-made greenhouse gases are the main cause of climate change. You can investigate the greenhouse gas effect caused by CO2 with this experiment. Since it is a bit more complicated, have your parents help you.

You will need

  • 2 identical glass jars with a small opening at the top
  • 2 digital thermometers
  • Strong adhesive tape (duct tape)
  • Effervescent tablets (for example, vitamin tablets) or baking soda
  • Household vinegar
  • A heat lamp (a desk lamp with a bulb that gives off a lot of heat will also work)
  • Stopwatch

Let’s get started!

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