Our Planet Earth

The Earth system that contains all living things.

• Atmosphere

• Biosphere

• Geosphere

• Hydrosphere

The Earth System containing the mixture of gases that forms a layer around Earth.

• Atmosphere

• Biosphere

• Geosphere

• Hydrosphere

True or False: The atmosphere is a mixture of nitrogen, oxygen and smaller amounts of other gases.

• True

• False

True or False: Oxygen makes up about 78%.

• True

• False

The Second layer. The Ozone layer is located here.

• Mesosphere

• Exosphere

• Stratosphere

• Troposphere

• Thermosphere

The closest layer to the Earth's surface

• Mesosphere

• Exosphere

• Stratosphere

• Thermosphere

• Troposphere

The third layer of the atmosphere

• Mesosphere

• Exosphere

• Stratosphere

• Thermosphere

• Troposphere

The fourth layer of the atmosphere

• Mesosphere

• Exosphere

• Stratosphere

• Thermosphere

• Troposphere

After this layer is outer space

• Mesosphere

• Exosphere

• Stratosphere

• Thermosphere

• Troposphere

The Earth system containing all Earth’s water

• Atmosphere

• Biosphere

• Geosphere

• Hydrosphere