Science Quiz
How many lower chambers are there in the human heart?
One of the heaviest gemstones and often blue, ZrSiO4 tends to be used as a cheaper alternative to diamonds. What is it?
Angora cats, sheep and goats are named for the Ankara region of what country?
Edison hadn't thought to get patents in Europe for what invention, so Auguste and Louis Lumiere could create a superior Cinematographe?
In most atoms, what particle weighs the same as a neutron?
What does one add to iron to get steel?
What commedia dell'arte character lends his name to a rare condition in which one side of your chest, neck and face is sweatier than the other?
What percent of plant life is found in the ocean?
What are a carnivore's pointed front teeth called?
How many teeth does a polar bear have?
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Very hard geography quiz, can you get more than 5 correct?
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Can you beat the score of this nurse?
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Extremely Hard History Quiz, most people score only 3 out of 10.