See if you can conquer this challenging science quiz.
Question 1 of 10
In AD 919, the Chinese used this to make "fire lances." A German monk, Berthold Schwarz, may have been the first to bring this to Europe, in the early 1300s. What is it?
Question 2 of 10
This planet's famous rings are made of ice-covered rock and dust, less than 200 km thick, but more than 270,000 km wide. And its inner moons are close enough to the rings to twist, braid and sweep them with their gravity. What planet is this?
Question 3 of 10
What citrus juice interferes with dozens of medications, because they are broken down by enzymes in the juice?
Question 4 of 10
Sixty million years ago, a snake called Titanoboa cerrejonesis ate crocodiles whole. At 45 feet long, it was as long as what object?
Question 5 of 10
The president of a postcard company happened to notice William Gruber at the Oregon Caves National Monument, where he was testing his new invention by taping two cameras together as a way to recreate the stereoscope. What did this become?
Question 6 of 10
Movies are letterboxed because old style TV screens are what?
Question 7 of 10
What animal's pit can detect a change in temperature of as little as one five-hundredth of a degree, which makes it a kind of ophidian infrared?
Question 8 of 10
The 1987 Lincoln Town Car is often called the first car to have what audio component?
Question 9 of 10
What device used thermal paper, which curled, blackened when you scratched it, had text that vanished over time and had poor resolution as ink spread into the paper?
Question 10 of 10
What is the most abundant element in the known universe?
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General Knowledge
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History Quizzes
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History Quiz
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10 Questions about History
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10 History Questions
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10 History Questions
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History Quiz
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Geography Quiz
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Geography Quiz
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HARD Science Quiz
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Geography Quiz
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10 Question About Planet Earth
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Geography Quiz
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10 difficult questions about John Denver
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Quiz on Science
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Who sang these songs?
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Who sang these songs?
10 Questions
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Quiz on music from the 1960s.
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Can you tell us who sang these songs?
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Motown Legends: Can You Name the Artist Behind These Hits?
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Which artist performed these songs?
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Who Sang These Country Songs?
Question 10 is by far the hardest
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Food & Beverage Quizzes
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Food Quiz
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Quiz on Food and Beverage
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10 Challenging Questions
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10 Knowledge Questions
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General Knowledge Quiz
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Movie Quiz
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Math Quiz
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Math Examination
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Do you remember these old cities?
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Movies Quiz
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