Print this page to do an experiment about how natural gas forms.
The natural gas we use in our homes is composed mostly of methane that took millions of years to form from decomposing organisms deep underground. You can mimic the natural gas formation process by using decomposing vegetable matter to create biogas.
Biogas is different from natural gas. It contains methane and carbon dioxide, but not the wide variety of hydrocarbons found in natural gas. However, the conditions that create biogas most rapidly in your experiment are the same conditions that were most favorable for the creation of natural gas millions of years ago.