carbon dioxide

Carbon dioxide is a gas that is made up of one carbon atom and two oxygen atoms. It is a colourless, odourless gas that is heavier than air. Carbon dioxide is found in the atmosphere, in the oceans, and in many living things.

Imagine that you are blowing bubbles in a glass of water. The bubbles are made up of carbon dioxide gas. Carbon dioxide is like the bubbles in the water. It is a gas that is made up of carbon and oxygen.

Carbon dioxide is an important gas for life on Earth. It is used by plants in photosynthesis to make food. It is also used by animals to breathe.

However, too much carbon dioxide in the atmosphere can be a problem. It can trap heat from the sun, which can cause the Earth to warm up.

Carbon dioxide is a major component of the Earth's atmosphere.