Greenhouse gases are gases in Earth’s atmosphere that trap heat.
They prevent the heat that the sunlight brings from leaving the atmosphere.
Greenhouse gases are a good thing. Without them, our planet would be too cold, and life as we know it would not exist.
Scientists are worried that human activities are adding too much of these gases to the atmosphere.
Carbon Dioxide comes from burning fossil fuels like coal and oil.
Methane gas is released from wetlands, growing rice, raising cattle, using natural gas, and mining coal.
Nitrous oxide is made from bacteria in the soil and the ocean. It is also released by some types of factories, power plants and plant fertiliser.
Chlorofluorocarbons are not created in nature. CFCs were found in aerosols, fridges and foam products but were banned from use in developed countries from 2000. There is some evidence that the ozone layer has started to repair itself thanks to the ban, which is great news and shows how fast and efficient action can really make a difference
We have created our own molecular model to show what atoms are joined together to make molecules and compounds using jelly beans and tooth picks. It was so much fun!
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