The planets
Moons
Asteroids
Misc. 1
Misc. 2
100
What is the only planet in the solar system that doesn't have an atmosphere
What is Mercury
100
How many moons does Mercury have?
What is none
100
What is between Mars and Jupiter?
What is the asteroid belt
100
What kind of star is our sun?
What is a yellow dwarf
100
What is the name of our galaxy?
What is the Milky Way
200
Why is the average temperature of Venus hotter than Mercury, even though it is not as close to the sun?
What is because it has a thick atmosphere
200
How many moons does Venus have?
What is none
200
What are asteroids made up of?
What is rock and metal
200
What is a terrestrial planet made up of?
What is rock
200
What is Pluto characterized as?
What is a dwarf planet
300
Which planet spins on its side as a result of an impact from a long time ago?
What is Uranus
300
What is the moon of Jupiter that is like hell, with many volcanoes and sulfur dioxide in the atmosphere?
What is Io
300
What is an asteroid that enters the Earth's atmosphere?
What is a meteor
300
What planet might we colonize next?
What is Mars
300
What is the belt of comets that Pluto is inside?
What is the Kuiper belt
400
What is Mars made up of that makes it red in color?
What is iron oxide
400
What is the largest moon in the solar system?
What is Ganymede
400
What is an asteroid that lands on the Earth?
What is a meteorite
400
What is the moon of Jupiter that has a smooth icy surface?
What is Europa
400
How is a shooting star caused?
What is a meteor buring in the atmosphere
500
What is a jovian planet made up of?
What is gas
500
What is the only moon with an atmosphere?
What is Titan
500
Why do so few asteroids hit the Earth?
What is because they burn up in the atmosphere
500
What is the farthest point inside of our solar system?
What is the Oort cloud
500
What layer of the atmosphere do most asteroids and comets burn up?
What is the mesosphere
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