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Extremely Hard Science Quiz Even Einstein would scratch his head!
When was the element ununbium discovered?
Protons and neutrons have approximately the same what?
In what era did dinosaurs live?
Egptian Priests labelled which planet "Her Desher"?
What colour is the mineral beryl when it contains chromium?
Acceleration is determined by the force acting on it and what else?
What percentage of marine fish species inhabit coral reefs?
The Alaska current is in which ocean?
CO2 is the chemical formula for which gas?
Which of these metals can be added to gold to make 'white gold'?
We selected 3 interesting quizzes for you
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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.
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We bet you don't know a thing about who invented these things!