Asteroids and Comets
Moons
Terrestrial Planets
Ice Giants
Gas Giants
100

Asteroids are primarily composed of these two substances

What is rock and metal?

100

Earth's moon is to blame for this common occurrence associated with coastal regions

What is the tide?

100

The common name for the animal that came to visit us

What is a Chinese Hamster?

100

Both planets in this category share this distinctive color 

What is Blue?

100

Jupiter's most distinctive feature

What is the Great Red Spot?

200

Comets are primarily composed of these three substances

What is ice, frozen gas, and dust?

200

Pluto's largest moon

What is Charon?

200

The majority of Earth's surface is covered by this substance

What is water?

200

Originally considered the "most boring planet"

What is Uranus?

200

If Jupiter were significantly larger, it might have become one of these

What is a star?

300

The solid part of a comet is known by this name

What is the Nucleus? 
300

This moon of Jupiter is in a state of constant eruption due to the planet's massive gravitational pull

What is Io?

300

The planet with the highest average temperature in the solar system

What is Venus?

300

The planet with the highest recorded wind speeds in the solar system

What is Neptune?

300

This planet's rings were sometimes referred to as "ears"

What is Saturn?

400

The reason that comets typically have two distinct tails

What is Solar Wind?

400

This moon of Jupiter is primarily made of ice and may contain liquid water under its frozen surface

What is Europa?

400

The red planet is red primarily due to this substance

What is Iron Oxide (Rust)?

400

This planet sometimes is further from the sun than Pluto

What is Neptune?

400

This planet's average density is significantly less than water, meaning that if there was a tub of water large enough, it could float in it

What is Saturn?

500
Comets that pass very close to the sun are known by this name

What are Sungrazers?

500

This moon of Saturn is the only known object in space—other than Earth—on which there is clear evidence that stable bodies of liquid exist 

What is Titan?

500

On this planet, its day is longer than its year

What is Mercury?

500

The person who discovered Uranus originally wished to name it after this famous monarch

What is King George the Third?

500

Both planets in this category are believed to have these kinds of cores

What are solid rocky cores?