What are some examples of gases?

Gases are one of the three states of matter. They are different from solids and liquids because they have no fixed shape or volume. This means that gases can expand to fill any container they are in.

Some common examples of gases include:

• Air: The air we breathe is a mixture of gases, including oxygen, nitrogen, carbon dioxide, and water vapor.
• Helium: Helium is a very light gas that is often used to fill balloons.
• Hydrogen: Hydrogen is a flammable gas that is used to power rockets and other vehicles.
• Carbon dioxide: Carbon dioxide is a gas that is produced when we breathe out. It is also used to carbonate drinks like soda.
• Water vapor: Water vapor is a gas that is formed when water boils. It is also the gas that makes clouds and fog.

Gases are all around us, and they play an important role in our lives. They help us breathe, they power our vehicles, and they even make clouds.