Astronomers
Planets
Elements
Matter
100

This astronomer is known as the "father of modern astronomy".

Who is Nicolaus Copernicus?

100

The only planet that can support life in our solar system

What is Earth?

100

This element is number 1 on the periodic table 

What is Hydrogen?

100

This state a matter a rock would fall under 

What is solid?

200

This astronomer discovered the law of gravity which was crucial in proving the planets orbited around the sun 

Who is Isaac Newton?

200

The smallest planet in our solar system 

What is Mercury? 

200

This element's symbol on the periodic table is C

What is Carbon?

200

This state of matter is what air would fall under 

What is gas?

300

This astronomer discovered the three laws of planetary motion 

Who is Johannes Kepler

300

This planet is known as the red planet 

What is Mars?

300

This element is number 7 on the periodic table 

What is nitrogen?

300

This state of matter is what honey would fall under

What is liquid 

400

This astronomer counted 1,025 stars and compiled a star catalog with said stars. 

Who is Ptolemy?

400

This planet is about the same size as Earth

What is Venus?

400

This element is number 47 and it's symbol is AG

What is Silver

400

This state of matter is what the Sun would fall under

What is plasma

500

This astronomer had the best tools before the telescope

Who is Tycho Brache?

500

The planet furthest from the Sun

What is Neptune?

500

This element's number is 74 and its symbol is W

What is Tungsten 

500

This is the definition of matter 

Anything that has mass and volume 

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