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Extremely Hard Science Quiz Even Einstein would scratch his head!
A group of jellyfish is called what?
What is the term for a molecule with both a positive and a negative charge?
As a solid melts what happens to the temperature?
What is the second most abundant element in the Universe?
About how many stars are in the Milky Way?
Janus is a moon of which planet?
Which number group in the Periodic Table contains oxygen?
What happens to iron oxide in a blast furnace?
Which planet shares its name with a popular chocolate bar?
Which of these is defined as a chemical substance that consists of just one type of atom?
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Extremely Hard History Quiz, most people score only 3 out of 10.
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We bet you don't know a thing about who invented these things!