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Wiki User
∙ 13y agoThe inner planets (Mars, Earth, Venus, and Mercury) are known as rocky planets specifically because they are solid. The basic anatomy of any rocky planet is a crust (surface), mantle, and a core. The cores of some planets are split in to two parts, an inner and outer core. For example: Earth has a solid rocky crust, a partially molten mantle, a molten outer core, and a solid iron inner core. Mars, on the other hand, has a rocky crust, a solid mantle, and a small, solid iron core.
The outer planets (Jupiter, Saturn are known as "gas giants". Obviously because they are made of gas with a cloudy surface. If you were to step on one of the gas giants, you would sink right through the surface and die.
Uranus, and Neptune are now known as the Ice Giants because they are comprised of mainly ice.
Wiki User
∙ 6y agothey are made of riks,gas,rocks,ice,helium,dust,iron,carbon dioxide and sand.
Wiki User
∙ 15y agothe inner planets are made of rock, the outer planets are made of gas
Wiki User
∙ 12y agoI never saw a classification that divides planets in eight different kinds. If such a system exists, it isn't something that is commonly used in Astronomy.
Wiki User
∙ 12y agoall outer planets with the exception of Pluto are made of a solid core surrounded by liquid then a thick gaseous atmosphere.
Wiki User
∙ 12y agoRocks, Ice, Gas, and Dust.
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Why are inner planets of solar system different from outer planets?
Because the inner planets are made of rock but the outer planets are made of gas(except for Pluto).
Are the inner planets made of rocks?
All the inner planets are rocky or terrestrial planets.
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 are the planets made of gas called?
There are four planets that are made out of gas: Jupiter, Saturn, Urans and Neptune. These planets are called the "gas giants" . The other four planets (Earth, Mercury, Venus and Mars) are mostly made out of rock.
How are the inner planets and the outer planets different and alike?
the inner planets are made of rock, ice and other materials while the outer planets are made of different kinds of gases except for pluto.
What planets are rock planets that the just the planets core made from rock?
there are 9 planets
How do the inner planets diffrer from the outer planets?
the inner planets made up of rocks while the outer planets are made up of gases and liquids.
What three planets are made of mass?
All the planets are made of "matter" and that has "mass".
Why are inner planets of solar system different from outer planets?
Because the inner planets are made of rock but the outer planets are made of gas(except for Pluto).
What are the four solid planets made of?
these planets are small rock solid planets.
What planets are just made of gases?
Type your answer here... all planets are made of gasses
Are planets objects?
yes the planets are made of matter, all objects are made of matter
What is the difference between terrestial planets and outer planets?
terrestrial are planets that are the inner planets since there are made up of rock. but on the other hand. the outer planets are the gas giants. or the outer planets. they are made up of various gasses.
Are the inner planets made of rocks?
All the inner planets are rocky or terrestrial planets.
What planets is made of rocks?
The planets Mercury, Venus, Earth, and Mars are made of rock.
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.
