Why is Mercury so similar to Earth’s moon?
Mercury is a planet much like the Moon. It has no atmosphere, and its surface is covered with circular im pact craters and huge, round basins. … Mercury is denser than the Moon, and it seems to have a large iron core, the source of a weak but detectable magnetic field, a feature the Moon lacks.
How does Mercury compare to the Moon and Earth?
Size of Planet Mercury
Mercury has a mean radius of 2,439.7 km in comparison to Earth with a mean radius of 6,371.0 km meaning the size of the planet is equivalent to 38% the size of Earth. In fact, Mercury is closer to the size of Earth’s moon than it is to planet Earth as Earth’s moon as mean radius of 1,737.1 km.
What is one important way in which both the Moon and Mercury are different from Earth quizlet?
The Moon is principally composed of silicate rocks, whereas Earth has more metals and volatile compounds. Earth has an iron core, but the Moon does not. Earth has liquid water in its surface layer, but the Moon does not. Mercury contains substantially more metals than the Moon, with a significant iron-nickel core.
Why is the surface of Mercury often compared with that of the Moon list two similarities and two differences between the surfaces of Mercury and the Moon?
Mercury is often compared to the moon because its surface looks similar to the backside of the moon (the main source of erosion for both is meteorite impact). Both have weak magnetic fields, but mercury doesn’t have any Maria like the moon does. Also, the density of the moon is much less than that of Mercury.
How is the planet Mercury similar to Earth’s moon quizlet?
Mercury has a weak magnetic field (compared to Earth). Like the moon, Mercury has many impact craters. How is the planet Mercury similar to Earth’s moon? Their surfaces both appear heavily cratered by impacts and their lowland regions were flooded by ancient lava flows.
What are two major differences between the Moon and Mercury?
After all, the two bodies have significant differences: unlike the moon, Mercury has a global magnetic field; its density is higher; there is an abundance of volatile elements such as sulfur; its surface contains much less iron, particularly in its crustal silicates — which indicates that the processes deep inside both …
How is Earth and Mercury alike?
Much like Earth, Mercury is a terrestrial planet, which means it is composed of silicate minerals and metals that are differentiated between a solid metal core and a silicate crust and mantle. For Mercury, the breakdown of these elements is higher than Earth.
Is Mercury bigger than Earth’s moon?
The smallest planet in our solar system and nearest to the Sun, Mercury is only slightly larger than Earth’s Moon.
In which ways are the Moon and Mercury similar select as few or as many that apply?
Mercury is the nearest planet to the Sun and the fastest moving. Mercury is similar to the Moon in having a heavily cratered surface and no atmosphere, but it differs in having a very large metal core.
In what way is the Moon similar to the Earth?
The composition of the Moon is much like that of the Earth. Its rocks are similar to Earth rocks and contain many but not all of the same minerals. However, the Moon has no atmosphere, it shows no trace of past or present life, and its rocks contain no water. The Moon rocks show that the lunar surface is very ancient.
When comparing the Moon and the Earth we concluded that the Earth can retain its heat longer?
What are the two kinds of terrain on the surface of the Moon? When comparing the Moon and the Earth, we concluded that the Earth has kept more of its heat. This is because the surface area to volume ratio of the Moon is larger than that of the Earth.
Why is the Moon less dense than the Earth?
The Moon’s relatively low density comes from the fact that it was mostly the Earth’s upper mantle and crust that was thrown up into space, and not very much of its core. The low density of the Moon means that it has less mass, and less gravity.
How can you tell the difference between a picture of the Moon and Mercury?
Mercury and the moon look mostly gray to the naked eye, but if you digitally exaggerate the natural color in the pictures, you suddenly see blues, yellows, and flecks of orange.
Which of the following describes a similarity between our moon and the Earth?
Both are made of rock. Both reflect sunlight. One and the other get energy from the sun. Even though the Moon orbits earth, it still revolves around the sun, just like Earth.