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Extremely Hard Science Quiz Even Einstein would scratch his head!
In chemistry, what is the island of stability?
Which of these elements' chemical symbols comes first alphabetically?
The pearl is the birthstone for which star sign?
What name is given to horizontal rows of elements in the Period Table?
Which of these is defined as a chemical substance that consists of just one type of atom?
What is the oldest a seahorse can live?
In physics, which Greek letter is used to denote wavelength?
What percentage of marine fish species inhabit coral reefs?
What is the term for a molecule with both a positive and a negative charge?
When atoms join together what do they form?
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