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Extremely Hard Science Quiz Even Einstein would scratch his head!
What is the term for a molecule with both a positive and a negative charge?
How many electrons does carbon have in its outer shell?
The gravity on the moon is what fraction of the gravity on Earth?
The 'Russian Wreck' lies in which sea?
What is the largest sea fish?
Which of these is an example of a transverse wave?
The African and Sumatran species have two horns; the Indian and Javan species have just one. What animals are we discussing?
Which of these is defined as a chemical substance that consists of just one type of atom?
In physics, which Greek letter is used to denote wavelength?
What is the smallest species of seal called?
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