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?
Latest Quizzes
Live Science crossword puzzle #22: Subatomic particle with a positive charge — 13 across
Science crossword Test your knowledge on all things science with our weekly, free crossword puzzle!
Live Science crossword puzzle #21: NASA rover that landed on Mars in 2012 — 16 across
Science crossword Test your knowledge on all things science with our weekly, free crossword puzzle!
Archaeology Fragments Quiz: Can you work out what these mysterious artifacts are?
Break out your best magnifying glass to solve these visual archaeology puzzles.
Live Science crossword puzzle #20: Largest contiguous land empire in history — 3 down
Science crossword Test your knowledge on all things science with our weekly, free crossword puzzle!
Live Science crossword puzzle #19: Tallest mountain in Africa — 12 across
Science crossword Test your knowledge on all things science with our weekly, free crossword puzzle!
Gold and gems quiz: What do you know about sparkly treasures made by nature?
Think you know a lot about jewels? Can you make this whole quiz shimmer?
Live Science crossword puzzle #18: First human-made satellite in space — 11 across
Science crossword Test your knowledge on all things science with our weekly, free crossword puzzle!
Live Science crossword puzzle #17: Multiple realities stacked on top of one another — 5 down
Science crossword Test your knowledge on all things science with our weekly, free crossword puzzle!
