How Much Do You Really Know About The Solar System?
17,138 views
Put your planetary knowledge to the test!
What are your thoughts on this subject?
115 Comments
David Smith
8/9 got temp of the sun not easy when not in celcius.
Eric Arvidson
Make up your mind for the percentage of water on earth; 75 or71.
Marian Spitzig
Good quiz. Some different questions.
mikeyparry
5 / 9. I made some silly mistakes! Good quiz.
Scott
9/9 Thanks for the answers.
Johnny Rock
I think the percentage of water on the surface of Earth is 71%. 8/9
Book worm
7/9 star light, star bright, first star i see tonight...
Jah's-Friend
James Steven Willis, don't we all lose a little mass with each trip around the sun? 😁