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Extremely Hard Science Quiz Even Einstein would scratch his head!

Question 1
What is the most abundant pure element in the Earth's atmosphere?
Question 2
The sea creature named 'Slippery Dick' is a what?
Question 3
The pearl is the birthstone for which star sign?
Question 4
About how many stars are in the Milky Way?
Question 5
Dogs' unique relationship with humans mean they are referred to as man's best what?
Question 6
What is the pH value of washing soda?
Question 7
What must an element readily gain or lose in order to be classed as 'reactive'?
Question 8
Protons and neutrons have approximately the same what?
Question 9
Which number group in the Periodic Table contains oxygen?
Question 10
A molecule that can act as an acid or a base is described as what?
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