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Extremely Hard Science Quiz Even Einstein would scratch his head!
Which of these metals can be added to gold to make 'white gold'?
Who discovered the electron in 1887?
Which plant is orbited by the moon of Proteus?
Rhea is a moon of which planet?
Dogs' unique relationship with humans mean they are referred to as man's best what?
Longitudinal waves show areas of compression and what else?
What is the oldest a seahorse can live?
What is the pH value of seawater?
The solid state of water is known as what?
In degrees Celsius, at what temperature does the sea start to freeze?
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Do you know who these famous people from the 60s and 70s are?
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