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Extremely Hard Science Quiz Even Einstein would scratch his head!

Question 1

Which of these metals can be added to gold to make 'white gold'?

Question 2

Who discovered the electron in 1887?

Question 3

Which plant is orbited by the moon of Proteus?

Question 4

Rhea is a moon of which planet?

Question 5

Dogs' unique relationship with humans mean they are referred to as man's best what?

Question 6

Longitudinal waves show areas of compression and what else?

Question 7

What is the oldest a seahorse can live?

Question 8

What is the pH value of seawater?

Question 9

The solid state of water is known as what?

Question 10

In degrees Celsius, at what temperature does the sea start to freeze?