The Planet Mercury Quiz: Trivia Questions and Answers
Free online printable quiz with multiple-choice questions (MCQ) without registration.
Mercury is the first planet of the Solar system. It is the smallest of 8 planets and belongs to the group of terrestrial planets.
The Planet Mercury Quiz consists of several interesting multiple choice trivia questions about the planet to test yourself.
Right answers
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1. How long is Mercury's orbit?
87.97 days
2. What is Mercury's average orbital speed?
47.362 km/s
3. What is the mass of Mercury?
3.3011 x 10^23 kg
4. What is the maximum surface temperature of Mercury?
700 K
5. What is Mercury's equatorial radius?
2,439.7 km
6. How thick is Mercury's crust estimated to be?
35 km
7. What was the name of the NASA robotic spacecraft that orbited Mercury between 2011 and 2015?
MESSENGER
8. What is the color of planet Mercury?
Dark gray
9. What was Mercury called by Babylonians?
Nabu
10. Who made the first telescopic observations of Mercury?
Galileo Galilei