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Extremely Hard Science Quiz Even Einstein would scratch his head!

Question 1

Complete the name of a famous feature on Mercury "The Caloris _____"?

Question 2

Atlas is a moon of which planet?

Question 3

Which of these is NOT true of helium?

Question 4

What is the atomic mass of oxygen?

Question 5

About how many stars are in the Milky Way?

Question 6

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

Question 7

Which planet has the second largest moon in the Solar System?

Question 8

How many types of sea urchin are there?

Question 9

The first technical submarine was built in Germany in which year?

Question 10

Which planet is the smallest of the "Gas giants"?