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Vocabulary
Inner planets
Outer planets
Asteroids, Comets, and Meteors
Early Scientist
100
The planet we live in
What is Earth
100
The coldest planet in our solar system
What is Neptune
100
This type has a tail
What is a Comet
100
Some scientist believed in this model
What is the geocentric model
200
A galaxy with spiral arms
What is a spiral galaxy
200
The hottest planet in our solar system
What is Mercury
200
The biggest planet in our solar system
What is Jupiter
200
These are made of rock
What is an asteroid and a meteor
200
Some scientist also believed in this model
What is the heliocentric model
300
A galaxy type that is shaped like a sphere
What is a elliptical galaxy
300
They call it "Earth's Twin"
What is Venus
300
This is between Mars and Jupiter
What is the asteroid belt
300
These were the earliest scientist
What is Ptolomy and Aristole
400
This galaxy has no spiral arms nor is shaped like a sphere
What is an irregular galaxy
400
They call it "Earth's neighbor
What is Mars
400
When a meteor hits a ground, it's called this
What is a meteorite
400
This person invented the observatory
What is Tycho Brahe
500
This rarely hits the Earth
What is a comet
500
This person knew the 3 laws of physics
What is Johannes Kepler