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Extremely Hard Science Quiz Even Einstein would scratch his head!
What type of ocean water is more dense?
In 1693 Giovanni Zupi observed that which planet actually orbited the sun?
The first technical submarine was built in Germany in which year?
How many moons orbit Mars?
What is the oldest a seahorse can live?
How long can a dolphin stay under water?
In degrees Celsius, at what temperature does the sea start to freeze?
What is the term for a molecule with both a positive and a negative charge?
Complete the name of a famous feature on Mercury "The Caloris _____"?
Which planet takes 29 Earth years to orbit the Sun?
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