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Extremely Hard Science Quiz Even Einstein would scratch his head!
A molecule that can act as an acid or a base is described as what?
What is Hg the chemical symbol for?
What type of wave is sound?
Who many species of seahorses are there?
Which of these surfaces is reflective?
Which planet has a day which lasts the equivalent of 176 Earth Days?
As a solid melts what happens to the temperature?
How long can a dolphin stay under water?
Which of the following is not a greenhouse gas?
Electric power is typically measured in what units?
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