The planets of our solar system.

Solar System Trivia Quiz

If you think you know everything about the solar system, you might need to prepare for more research as you try out our trivia quiz game. The solar system is not just the sun. The solar system is everything -- the Earth, the moon, and other planets in our system, as well as all their moons, asteroids, comets, and so much more.

A solar system is a group of gravitationally-bound celestial objects that orbit around a star – together, these objects and the star comprise a solar system. Do you think you know all the planets in our solar system? Play this quiz and find out!

Solar System Games

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Solar System
What percentage of the sun is made of helium?