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Extremely Hard Science Quiz Even Einstein would scratch his head!
Mimas is a moon of which planet?
How many electrons does carbon have in its outer shell?
What is the oldest a seahorse can live?
Which planet is known as The Bringer of Old Age?
What is the pH value of seawater?
What name is given to a substance which reacts with an acid to form a salt plus water?
What is Hg the chemical symbol for?
Lobate Scarps are a feature of which planet?
Which of these is NOT true of helium?
In physics, which Greek letter is used to denote wavelength?
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