Earth's Atmosphere
Earth's Water
Earth's Sun
Looking Out from Earth
Vocabulary
100

You cannot see it or taste it, you cannot even smell it, it's called ____

What is air?

100

__ of Earth's water is fresh 

What is 3%?

100

December's shadow is ______ than June's.

What is longer?

100

You have to throw an object ______ meters per second for it to go up into Earth's atmosphere.

What is 2,320?

100

A time of year that brings predictable __________________ to region on Earth.

What is climate?

200

_____ is the most abundant gas.

What is nitrogen?

200

The ______________ is the reason that we never run out of water.

What is the water cycle?

200

The sun rises in the East and sets in the _____.

What is West?

200

Newton was the first to realize that all objects have _____________

What is gravity?

200

A ____ is made up of ice, rocks, and gas.

What is a comet?

400

_____ is the process by which water escapes into the air from plants.

What is transpiration?

500

A ______ is a change in atomic structure that creates vast amounts of heat and light energy, as in the reactions that occur in the Sun.

What is Thermonuclear Reaction?

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