Planet Mercury Quiz 02 View All Quizzes
Mercury's year is how many Earth's days?
Correct!
Wrong!
How many astronauts have landed on Mercury?
Correct!
Wrong!
What color is Mercury's sky?
Correct!
Wrong!
The minimum surface temperature of Mercury is:
Correct!
Wrong!
Which spacecraft first visited Mercury?
Correct!
Wrong!
The planet Mercury is mainly made up of _______.
Correct!
Wrong!
What is Mercury's average orbital speed?
Correct!
Wrong!
What is the maximum surface temperature of Mercury?
Correct!
Wrong!
Mercury's equatorial radius is about _________.
Correct!
Wrong!
How thick is Mercury's crust?
Correct!
Wrong!
