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Planet Mercury Trivia Quiz Questions and Answers

Trivia quiz questions with answers about the planet Mercury


Planet Mercury Trivia Quiz Questions and Answers

Mercury is one of the four “what” planets in the Solar System?
A: Terrestrial.

Like Earth, Mercury is what type of body?
A: Rocky.

As far as size, were does Mercury rank with the other planets?
A: It is the smallest planet in the Solar System.

What is the radius of Mercury at the equator?
A: 1,516.0 miles.

Mercury is also smaller in size than what two natural satellites in the Solar System?
A: Ganymede and Titan.

How much of Mercury consists of approximately metallic material?
A: 70%.

Where does Mercury's density rank in the Solar System?
A: It’s the second highest.


Mercury's core occupies about what percentage of its volume?
A: 42%.

Research published in 2007 suggests that Mercury has what type of core?
A: Molten.

How thick is Mercury's crust believed to be?
A:  60–180 miles.

Mercury's core has a higher iron content than what?
A: Any other major planet in the Solar System.

Mercury's surface is similar in appearance to that of the what?
A: The Moon.

Craters on Mercury are named for whom?
A: Artists, musicians, painters, and authors who have made outstanding or fundamental contributions to their field.

Who are Ridges, or dorsa, named for?
A:  Scientists who have contributed to the study of Mercury.


What are depressions or fossae named for?
A: Works of architecture.

What are montes named for?
A: The word "hot" in a variety of languages.

Mercury was heavily bombarded by what during and shortly following its formation 4.6 billion years ago?
A: Comets and asteroids.

Craters on Mercury range in diameter from small bowl-shaped cavities to multi-ringed impact basins how far across?
A: Hundreds of kilometers across.

What is the largest known crater on Mercury?
A: The largest known crater is Caloris Basin, with a diameter of 960 miles.

The impact that created the Caloris Basin was so powerful that it caused lava eruptions and left a concentric ring over how tall surrounding the impact crater?
A: 1.2 miles.

Overall, about how many impact basins have been identified on the imaged part of Mercury?
A: 15.


Although the daylight temperature at the surface of Mercury is generally extremely high, observations strongly suggest that “what” exists on Mercury?
A: Ice (frozen water).

The floors of deep craters at the poles are never exposed to what?
A: Direct sunlight.

Mercury is too small and hot for its gravity to retain any significant what over long periods of time?
A: Atmosphere.

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