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Online Quiz (Worksheet A B C D)

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Upper Elementary Science - II
3.2 Planet Mercury - The Smallest Planet

In mythology, Mercury was a Roman God. He was the messenger for the other gods, and for this reason Mercury is often shown in pictures with winged sandals. In addition to delivering messages, he was also the protector of travelers, and merchants.

How much would you weigh on Mercury? If you moved to Mercury you would not weigh as much as you do on Earth. Not because you would lose weight on the space ship, but because Mercury is smaller, and so has less gravity. If you weigh 70 pounds on Earth, you would weigh only about 27 pounds on Mercury.

Mercury is a world of extremes. Because it is so close to the Sun, a visitor could easily cook to death. However because mercury spins so slowly it gets very cold in the night time, which means a visitor could also freeze to death. Mercury has no moons.


Directions: Answer the following questions.
Q 1: What is the diameter of this planet in miles?
4876 miles
7517 miles
142 miles
3031 miles

Q 2: How long does it take the planet Mercury to make one rotation on its axis?
59 days
24 hours
159 days
59 hours

Q 3: Mercury spins very slowly and therefore it gets very _____ in the night time.
hot
cold
warm

Q 4: Mercury is smaller, and so has _____ gravity than the planet Earth.
more
less
no

Q 5: Mercury is about the size of _____.
Earth
Mars
our Moon
Sun

Q 6: How many miles away is the planet Mercury from the sun?
36 million
196 million
225
36

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Question 8: This question is available to subscribers only!


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