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Extremely Hard Science Quiz Even Einstein would scratch his head!
Longitudinal waves show areas of compression and what else?
The Japanese Spider Crab can grow to what length?
When atoms join together what do they form?
Electric current is calculated by charge divided by what?
Which of these is NOT true of helium?
In physics, which Greek letter is used to denote wavelength?
What is the term for a molecule with both a positive and a negative charge?
What is the atomic number for magnesium?
What is the pH value of washing soda?
Which planet is name after the Roman God of Wealth?
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Do you know who these famous people from the 60s and 70s are?
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Extremely Hard History Quiz, most people score only 3 out of 10.