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Are the outer planets are much less dense than the inner planets why?
Wiki User
∙ 12y ago
The outer planets.
The four inner planets (Mercury, Venus, Earth, Mars) are similar to Earth - relatively small, and with a rocky surface.
The four outer planets (Jupiter, Saturn, Uranos, Neptune) are gas giants - between 5 and 11 times the diameter of Earth, and made up mainly of gas. They don't have a solid surface you can step on - just gas that gets denser as you go deeper inside.
Wiki User
∙ 14y ago
Wiki User
∙ 12y agoThe answer depends on what you would consider "much less". The average densities (in kg/m3) are listed below for comparison.
Earth5515Mercury5427Venus5243Mars3933Pluto1750Neptune1638Jupiter1326Uranus1270Saturn687
Note that all of the planets beyond Mars are less than 1/3 the density of Earth; Saturn is only about 1/8 the density of Earth. The reason for the lower densities is the difference in composition. The inner planets are "rocky" - made up of dense solids, while the outer planets are primarily composed of lighter materials - hydrogen, helium, methane, etc - with very little of the heavier elements like silicon, iron, etc.
Wiki User
∙ 12y agoThe terrestrial planets are Mercury, Venus, the Earth, and Mars. They are characterized by a dense rocky surface with a dense core and overall are relatively dense. The other four planets are called the Jovian planets, or less formally, the gas giants, and include Jupiter, Saturn, Uranus, and Neptune. These planets are made primarily of Hydrogen and Helium, but also contain Neon, Nitrogen, and Methane. These outer planets are much larger than the terrestrial planets and therefore have more mass but are much less dense. Parts of them such as Jupiters core can have extremely high pressures in which strange substances such as metallic hydrogen can form. However, overall these planets are very dense. It is known that Saturn is less dense than a glass of water. Theoretically, if there were a large enough bath tub, Saturn would float in it.
Wiki User
∙ 14y agoTechinically the inner planets have less gravity than the other but this is because of the mass of the planet.
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Why are the outer planets less dense?
They are made of less dense materials. While the inner planets are made primarily of rock, the outer planets are made mostly of hydrogen and helium.
What sort of surfaces do the inner planets have?
The inner, or terrestrial planets are more dense than the outer planets/gas giants/jovian planets. Through a process of differentiation we find inner planets to typically consist of a molten iron core and a less dense silicate crust.
How do the distances between the inner planets compare to the distance between the outer planets?
The orbits of the four inner planets are much closer, all orbiting the sun within ¼ billion km. The outer planets are more spread out, but are much larger in size. Their distances roughly double each time as you go out from Jupiter. Average distances of inner planets from sun; Mercury, 57,909,175km Venus, 108,208,930km Earth, 149,597,890km Mars, 227,936,640km Average distances of outer planets from sun; Jupiter, 778,412,010km Saturn, 1,426,725,400km Uranus, 2,870,972,200km Neptune, 4,498,252,900km
What are three ways that the inner planets are different from the putter planets?
#1 The Inner Planets are rocky, with a thin atmosphere. The Outer Planets are Gas Giants. #2 The Inner Planets are closer together, and nearer the Sun. The Outer Planets are much further apart and further from the Sun. #3 The Inner Planets orbit the Sun much more quickly; 2 years at a maximum. The Outer Planets orbit the Sun much more slowly; 11 years at a minimum. #4 With the exception of Earth and Mars, the Inner Planets do not have natural satellites. The Outer Planets have multiple satellites. #5 The Inner Planets do NOT have 'rings'. The Outer planets, notably Saturn have concentric rings. #6 The Inner Planets are separated from the Outer Planets by the Asteroid belt.
The Jovian planets are more massive but less dense than the terrestrial planets?
Yes, the large and more massive outer planets are made mainly from Hydrogen and Helium. They are less dense than the smaller terrestrial planets.
Are the outer planets less dense?
They are made of less dense materials. While the inner planets are made primarily of rock, the outer planets are made mostly of hydrogen and helium.
Why are the outer planets less dense?
They are made of less dense materials. While the inner planets are made primarily of rock, the outer planets are made mostly of hydrogen and helium.
Are outer planets denser than smaller planets?
No. The outer planets are gas planets, which are much less dense than the inner terrestrial planets.
What sort of surfaces do the inner planets have?
The inner, or terrestrial planets are more dense than the outer planets/gas giants/jovian planets. Through a process of differentiation we find inner planets to typically consist of a molten iron core and a less dense silicate crust.
Is the distance between inner planets less or greater than the distance between the outer planets?
The inner planets are closer together than the outer ones.
How do the distances between the inner planets compare to the distance between the outer planets?
The orbits of the four inner planets are much closer, all orbiting the sun within ¼ billion km. The outer planets are more spread out, but are much larger in size. Their distances roughly double each time as you go out from Jupiter. Average distances of inner planets from sun; Mercury, 57,909,175km Venus, 108,208,930km Earth, 149,597,890km Mars, 227,936,640km Average distances of outer planets from sun; Jupiter, 778,412,010km Saturn, 1,426,725,400km Uranus, 2,870,972,200km Neptune, 4,498,252,900km
Is the distance between inner planets less than or greater than the distance between the outer planets?
The inner planets are closer together than the outer ones.
What is the least dense crust outer core mantle or the inner core?
The crust is the least dense. The inner core is the most dense. So from the middle outwards the layers get less and less dense
What are three ways that the inner planets are different from the putter planets?
#1 The Inner Planets are rocky, with a thin atmosphere. The Outer Planets are Gas Giants. #2 The Inner Planets are closer together, and nearer the Sun. The Outer Planets are much further apart and further from the Sun. #3 The Inner Planets orbit the Sun much more quickly; 2 years at a maximum. The Outer Planets orbit the Sun much more slowly; 11 years at a minimum. #4 With the exception of Earth and Mars, the Inner Planets do not have natural satellites. The Outer Planets have multiple satellites. #5 The Inner Planets do NOT have 'rings'. The Outer planets, notably Saturn have concentric rings. #6 The Inner Planets are separated from the Outer Planets by the Asteroid belt.
Why is the outer core above the inner core?
The outer core is less dense than the inner core, and therefore floats on top of it.
What is a inner planer?
An inner planet is mostly made of iron and has more mass than outer planets, outer planets are mostly made of gasses, makeing them have less mass. The inner planets are the planets between the asteroid belt and the sun
Why do the inner planets have fewer moons?
The inner terrestrial planets are far less massive than the giant outer planets and therefore have weaker gravity.
