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All inner planets have approximately the same type of structure: a central metallic core, mostly iron, with a surrounding silicate mantle.
The mantle is covered by the crust. The surface is part of the crust.
The surfaces are made of rocks.
In the case of the Earth, about 70 % of the surface is actually the water of the oceans.
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What 3 ways do inner planets differ from outer planets?
Inner planets are smaller and made of rock and metal, while outer planets are larger and predominantly made of gas and ice. Inner planets have few or no moons, while outer planets have numerous moons. Inner planets have solid surfaces, while outer planets do not have solid surfaces, instead having thick atmospheres.
Which is not true in the inner planets?
The inner planets are closer to the Sun compared to the outer planets, have solid rocky surfaces, and are smaller in size compared to the outer planets.
How do the surface materials of the inner and outer planets differ?
The inner planets (Mercury, Venus, Earth, Mars) have rocky surfaces composed of silicate minerals and metals. The outer planets (Jupiter, Saturn, Uranus, Neptune) have gas surfaces, primarily composed of hydrogen and helium. Additionally, outer planets may have icy surfaces due to the presence of water and other ices.
Why are inner planets different than outer planets?
Inner planets, such as Earth, Mars, Venus, and Mercury, are smaller, denser, and composed mainly of rocky materials. They have solid surfaces and relatively high temperatures. In contrast, outer planets, like Jupiter, Saturn, Uranus, and Neptune, are much larger, primarily made of gases and ice, and have lower densities. They also have no solid surfaces and are much colder than inner planets.
What are the inner planets and the outer planets and how do the planets in the two groups differ?
The inner planets of our solar system are Mercury, Venus, Earth, and Mars, while the outer planets are Jupiter, Saturn, Uranus, and Neptune. Inner planets are smaller, rocky, and have solid surfaces, whereas outer planets are larger, gaseous, and have no solid surfaces. The inner planets are much closer to the Sun compared to the outer planets.
