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Extremely Hard Science Quiz Even Einstein would scratch his head!
Which waves can be transverse or longitudinal?
Who discovered the electron in 1887?
What name is given to vertical columns of elements in the Period Table?
Which of these is NOT an organic compound?
Sonar is an acronym for sound navigation and what?
Johann Schroter spotted 20km Mountains on which plant in 1800?
How many different elements occur naturally?
What is the pH value of apple juice?
In chemistry, what is the island of stability?
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