Earth's Atmosphere & the Water Cycle

How many layers are in Earth's atmosphere?

Select the two gases that make up the majority of Earth's atmosphere.

Which layer of the atmosphere do we live in? The majority of weather occurs here.

In which layer of the atmosphere do most airplanes fly to avoid turbulence?

What is the process in which Earth's water is constantly recycled from a liquid to a gas and back to a liquid?

What is the process of liquid changing to a gas? This is caused by the sun heating water.

Clouds are formed during the process called ___________. This occurs when water vapor rises, cools, and changes from a gas to a liquid.

Snow, rain, sleet, and hail are all forms of _____________.

What is precipitation that has soaked into the ground?

What is water that flows over the land and goes back into the ocean?