Challenging science quiz. Can you beat it?
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?
Who Sang Quizzes
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Who Sang These Songs?
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Quiz on music from the 1960s.
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Who Sang These Songs?
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Which artist performed these songs?
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Do you know who sang these songs?
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History Quizzes
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History Questions
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History Quiz
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History Quiz
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10 History Questions
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History Trivia Quiz
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Geography Quizzes
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HARD Science Quiz
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10 Question About Planet Earth
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Geography Quiz
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Geography Quiz
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Geography Quiz
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Music Quizzes
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HARD Music Quiz
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Music Quiz For Intelligent People
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Very Hard Music Quiz
10 Questions
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HARD Music Quiz
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Alternative Rock Music Quiz
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Music Quiz For Intelligent People
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Science Quizzes
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Hard Science Quiz
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Science Quiz
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Play Quiz
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Science Quiz!
Try to answer these 10 questions correctly.
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Impossible Science Quiz
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Food & Beverage Quizzes
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Food & Beverages Quiz
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Challenging Food & Beverages Quiz
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Food & beverages Quiz!
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Take this fun quiz with your Facebook Friends and find out who has a better knowledge of Food & Beverages!
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Challenging Food & Beverages Quiz
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Food & Beverages Quiz
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General Knowledge Quizzes
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Trivia Contest
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Mixed Trivia Quiz
10 Questions!
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10 Impossible Trivia Questions
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10 Hard Questions
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Put Your Knowledge to the Test
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General Knowledge Quiz
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Literature Quizzes
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Time for some Literature!
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Only a real bookworm can answer these 10 questions correctly.
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Literature Quiz
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Literature Quiz
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Sudden Death Quiz
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Movie Quizzes
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Movies Quiz
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Movie Quiz
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Movie Quiz
What movie has your best memory?
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Quiz about Movies
What do you prefer? Series or movies?
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Movie Quiz
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Crazy Quiz About Movies!
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Math Quizzes
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Math Quiz
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Math Test
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10 hard math questions
Math Test
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Math Quiz
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Math Quiz
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We bet you don't know a thing about who invented these things!
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Who or what am I?
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Very hard geography quiz, can you get more than 5 correct?