Inner planets
the sun
Outer Planets
miscellaneous
numbers
100

This is the planet that is closest to the sun.

What is Mercury?

100

This is in the center of the solar system.

What is the Sun?

100

This is another name for the outer planets

What is jovian planets?

100

Pluto is classified as a

What is a dwarf planet?

100

The sun is this far away from earth.

What is 1 AU?

200

This is the 3rd planet from the sun.

What is earth?

200

The sun is a type of this gas sphere that gives off light and heat.

What is a star?

200

These are the main gases they are made of

What are H & He?

200

These chunks of ice & rock can be massive and have moons of their own. 

What is asteroids?

200

Moons Mars has

What is 2?

300

This is what Venus' rotation is called because it goes 'backwards'

What is "retrograde rotation?"

300

It takes the earth 365 days to do this.

What is revolve (orbit) around the sun?

300

These outer planets have a ring system

What are all of them?

300

This has a bright tail and a glowing nucleus.

What is a comet?

300

The distance Jupiter is away from the Sun.

What is 5 AU?

~5 x's that of Earth

400

Name the terrestrial planets in order 1,2,3,4

What is Mercury, Venus, Earth, and Mars?

400

This is how long it takes earth to complete one rotation.

What is 24 hours --or one day?

400

This Jovian planet rotates on its side

What is uranus?

400

Moons: Io, Europa, Ganymede, Callisto

What are the Galilean Moons?

400

Venus atmospheric pressure compared to Earth

What is ~90 x more?

500

Mars appears red because

What is the rocks have iron oxide in them. 

500

The sun is responsible for this first step of the water cycle.

What is evaporation?

500

This planet has the most known moons of our solar system

What is Jupiter?

500

Sun-centered solar system organization

What is the helio-centric model

500

This is how many Earth's could fit inside Jupiter.

What is 1000?

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