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The ones farther out from our sun acquired a lot of their mass through accretion, the gathering of large amounts of gasses. The fact that they are farther away from the sun and therefore colder also affects this. Gases in colder temperatures are not as active and therefore don't escape the planet's gravity easily. In general you will find heavier elements on the closest planets and lightest elements on the farthest ones. The metals were drawn closer to the sun as the solar system formed due to their greater mass. The gases like hydrogen and helium got farther away before settling into orbit. There are many other factors involved, the main one being that conditions on the initial state of the planet influenced the formation of other compounds, sometimes unique to that planet, like oxygen on Earth.
What else can I help you with?
What planets are made of rock and gas?
All
Can dwarf planets be made of gas?
Not really, they are made of rock.
How do the planets in the two groups different?
The first 4 planets, Mercury, Venus, Earth, and Mars, are called rock planets, and the last 4, Jupiter, Saturn, Uranus, and Neptune, are the gas planets. The main differences between these two groups are that the rock planets are made of rock, the gas planets are made of gas, the rock planets are typically smaller than the gas planets, and the gas planets have rings.
How many planets are mainly made up of gas and how mainly made up of rock?
There are 4 rocky planets and 4 gaseous planets in the solar system
What is difference between the terrestrial and gaseous planets?
Terrestrial planets, like Earth, are small, dense, and composed of rocky surfaces. They have solid surfaces and may have atmospheres but are predominantly rock. Gaseous planets, like Jupiter and Saturn, are much larger, less dense, and predominantly made up of gases like hydrogen and helium. They do not have solid surfaces and are often referred to as gas giants.
Are all the planets made out of rock?
No, some are made out of gas.
Are planets made out of stars?
No. Planets are objects made of some combination of rock, gas, and/or metal that orbit stars.
What planets are made of rock and gas?
All
How the inner planets are similar to each other?
The four inner planets are all made of rock or are rock based but the four outer planets are all made of gas or gas based.
Can dwarf planets be made of gas?
Not really, they are made of rock.
Why are the inner planets smaller and made of rock while the outer planets are large and made of gas?
juptier
Why are the smallest planets the densest?
because they are made of mostly metal and rock while the bigger planets are mostly made of gas
What is all the planets made of?
Most planets are made of some kind of terrain and atmosphere. Most planets in our solar system have a terrain that consists of some kind of rock, ice, sand, or dirt that forms the planet and an atmosphere that consists of a gas.
Which planets are comprised of just rock?
the first four planets, closet to the sun, are called the "rock planets" these are, in order from the sun outwards : mercury, venus, earth, mars after mars are the gas giants, which are not made of rock, but gas, as the name suggests.
How do the planets in the two groups different?
The first 4 planets, Mercury, Venus, Earth, and Mars, are called rock planets, and the last 4, Jupiter, Saturn, Uranus, and Neptune, are the gas planets. The main differences between these two groups are that the rock planets are made of rock, the gas planets are made of gas, the rock planets are typically smaller than the gas planets, and the gas planets have rings.
Are outer planets surfaces rock and hard?
Jupiter, Saturn, Neptune, and Uranus are known as 'gas giants', meaning that they are made of gas. Pluto is made of rock.
How many planets are mainly made up of gas and how mainly made up of rock?
There are 4 rocky planets and 4 gaseous planets in the solar system
