What is this?

What is a cell?
2 + 8 = ?
What is 10?

Who is George Washington?
What is this called?

What is the Solar System?

What is a plus sign?
What type of natural surface is this?

What is a Volcano?
5 + 8 = ?
What is 13?

Who is Joe Biden?
What is the name of this device used for stargazing?

What is a telescope?

What is Pi?
What is this?

What is an Atom?
4 x 7 = ?
What is 28?

Who is John F. Kennedy?
What is this?

What is a comet?
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What is infinity?
This cycle shows the continuous movement of water within the Earth and atmosphere. It is a complex system that includes many different processes.
What is the Water Cycle?
144 divided by 12 equals what?
What is 12?
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Who is Bill Clinton?
What planet is this?

What is Pluto?

What is greater than or equal to?
There are three types of rocks: Metamorphic, Igneous, and?
What is Sedimentary?
13 x 5 = ?
What is 65?

Who is James Madison?
What constellation is depicted here?

What is Ursa Minor?
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What is the "sum of" symbol or sigma?