Liquid water __________ from the lakes and oceans, forms clouds, falls as rain, and flows back into the lakes and oceans. This is called the Water Cycle.

What is the hottest layer of the Lithosphere?

When did Astronauts first visit the moon?

When water is solid we call it ice, and when it is a gas we call it...

How long does it take the moon to orbit the Earth?

What causes the four seaons?

What is the hottest planet in the Solar System?

There is no weather on the moon because it has no ____________.

We can see the moon because it _______ the light from the sun.

The Atmosphere is the ______ of gas around the Earth.

What part of the Atmosphere protects us from the sun's radiation?

How long does it take the Earth to orbit the sun?

Where is the Earth's crust the thinnest?