0
Gas Giants have mostly Hydrogen gas which is the lightest element, so in fact gas giants are in overall density the lightest of all the planets. Jupiter is 318 times the mass of the whole Earth, and roughly 99% of that mass is Hydrogen.
At their cores they may be very dense because of great pressure, but it is still mostly Hydrogen and not as dense as a rocky planet. Gas Giant densities may be very different from each other because along with the Hydrogen they may have more Helium or a larger core of ice and/or rock.
Neptune's overall density is 1.638 g/cm³ - 30% as dense as Earth
Jupiter's overall density is 1.326 g/cm³ - 24% as dense as Earth
Uranus's overall density is 1.27 g/cm³ - 23% as dense as Earth
Saturn's overall density is 0.687 g/cm³ - 12% as dense as Earth
Earth's overall density is 5.515 g/cm3
The inner planets are dense and small because they formed closer to the Sun where high temperatures caused heavier materials to condense. The outer planets are gas giants because they formed farther from the Sun where it was colder, allowing lighter gases like hydrogen and helium to dominate their composition.
The likely reason proposed by scientists is that the smaller planets accreted from dense material closer to the Sun that had to revolve faster to maintain its orbit.
Although the actual result is not clear, any gas giant close to the Sun would have been heated to the point that it lost most of its lighter elements to space. Jupiter, for example, would likely lose a large percentage of its hydrogen if it were as close as Earth or Venus.
Dwarf planets far from the Sun, such as Pluto and Eris, contain a lot of frozen gases and are more closely related to asteroids and comets.
Gas Planets are dense inside because the gas becomes dense because it has lots of mass.
gravity keeps the gas giants planets gases from escaping so they have thick atmosphere
gas giants have so much gas that they came up with the name,gas giants
Add your answer:
Earn +20 pts
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.
What do the outer planets have that the inner planets do not have?
outer planets are gas giants whille inner planets are just rocky planets. that includes that outer planets have significant amount of mass than the inner planets
How are the inner and outer planets different?
There are a lot of differences between the inner and outer planets. First of all, they inner planets are also known as the "Rocky planets". THey are rocky, hence their name "Rocky planets". And the outer planets are also known as "Gas Giants." THey are mainly composed of gas, hence their name, "Gas Giants." Another difference is their mass. The outer planets have greater mass than the inner planets. In other words, they are heavier.The inner planets follow orbital paths which, like those of the outer planets,are centered on the sun. But the inner planets, without exception, are nearerto the sun than any of the outer planets are.
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 is the composition of inner planets and outer planets?
The compositions of the inner planets and outer planter are nickel, iron, and rock formations. Some of the gases are methane and ammonia and water.2nd Answer:The 'inner' planets, better called, "Terran" planets (Earth is Terra) are solid per the above answer. The 'outer' planets, better called, "Jovian" planets (Jove is a more 'English' form of Jupiter) are all gas giants - they are not solid, although some think that their cores might be rocky.
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.
What do the inner planets consit of?
The inner planets are rocky and the outer planets are gas giants.
What do the outer planets have that the inner planets do not have?
outer planets are gas giants whille inner planets are just rocky planets. that includes that outer planets have significant amount of mass than the inner planets
How are the inner and outer planets different?
There are a lot of differences between the inner and outer planets. First of all, they inner planets are also known as the "Rocky planets". THey are rocky, hence their name "Rocky planets". And the outer planets are also known as "Gas Giants." THey are mainly composed of gas, hence their name, "Gas Giants." Another difference is their mass. The outer planets have greater mass than the inner planets. In other words, they are heavier.The inner planets follow orbital paths which, like those of the outer planets,are centered on the sun. But the inner planets, without exception, are nearerto the sun than any of the outer planets are.
What makes the inner planets different from the outer planets?
The inner planets are small and rocky, the outer planets are much larger and have no solid surface, they are called the gas giants.
Is this true or false that the inner plants are gas giants and the outer planets are rocky?
False. In our solar system, the inner planets are rocky (Mercury, Venus, Earth, and Mars), while the outer planets are gas giants (Jupiter, Saturn, Uranus, Neptune).
What criteria are the planets placed into either the inner or outer groups?
Gas giants (for the outer planets), versus rocky planets.
Are outer planets denser than smaller planets?
No. The outer planets are gas planets, which are much less dense than the inner 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.
What is the composition of inner planets and outer planets?
The compositions of the inner planets and outer planter are nickel, iron, and rock formations. Some of the gases are methane and ammonia and water.2nd Answer:The 'inner' planets, better called, "Terran" planets (Earth is Terra) are solid per the above answer. The 'outer' planets, better called, "Jovian" planets (Jove is a more 'English' form of Jupiter) are all gas giants - they are not solid, although some think that their cores might be rocky.
Are the inner planets smaller than the outer planets?
Yes, the inner planets (Mercury, Venus, Earth, and Mars) are smaller than the outer planets (Jupiter, Saturn, Uranus, and Neptune). The outer planets are known as gas giants and are much larger in size compared to the inner terrestrial planets.
