How much do you know about science and nature? Try a science quiz and see how well you score against other Live Science readers.
Can you name everything from Ac to Zr? You have 10 minutes to test your knowledge of the periodic table and see if you can top the leaderboard.
Do you think you've got decent science knowledge? It's time to put your gray matter to the test with our weekly, free science crossword puzzle — updated every Monday.
Just 12 people — all American men — have walked on the moon. Can you name all of them in six minutes?
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Live Science crossword puzzle #40: Closest planet to the sun — 11 acrossScience crossword Test your knowledge on all things science with our weekly, free crossword puzzle!
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Earth quiz: What do you know about our planet's most amazing features?Do you know Earth's highest peak, deepest point, and more? Test your knowledge about our planet in this quiz.
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Live Science crossword puzzle #39: God of war from Ancient Greek mythology — 2 down
Science crossword Test your knowledge on all things science with our weekly, free crossword puzzle!
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Artemis II quiz: Is your knowledge of NASA's historic moon mission out of this world?QUIZ The slingshot around the moon has catapulted the Artemis II mission to legendary status. How much do you know about this iconic mission?
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Live Science crossword puzzle #38: Largest non-polar desert in the world — 10 across
Science crossword Test your knowledge on all things science with our weekly, free crossword puzzle!
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Live Science crossword puzzle #37: The seventh planet from the sun — 2 down
Science crossword Test your knowledge on all things science with our weekly, free crossword puzzle!
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Octopus quiz: Are you a sucker for cephalopod science?This quiz tests what you know about octopus anatomy and behavior.
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Live Science crossword puzzle #36: America's national bird — 11 across
Science crossword Test your knowledge on all things science with our weekly, free crossword puzzle!
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Live Science crossword puzzle #35: Hardy 'micro-animal' that can survive in many extreme environments — 8 down
Science crossword Test your knowledge on all things science with our weekly, free crossword puzzle!
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