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Extremely Hard Science Quiz Even Einstein would scratch his head!

Question 1

Which of these have a positive charge?

Question 2

Which of the following is not a greenhouse gas?

Question 3

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

Question 4

Which of these is NOT true of helium?

Question 5

What percentage of marine fish species inhabit coral reefs?

Question 6

Who many species of seahorses are there?

Question 7

Which of these is NOT an organic compound?

Question 8

Hematite makes up the surface of which planet?

Question 9

Which two elements combine to make ammonia?

Question 10

What is the atomic number for magnesium?