Proficiency #4 for astronomey in science

By: Allie Snyder

It was formed by a very large rotating cloud of dust and gas called the Solar Nebula.

Sooner than later the Nebula fell apart, as it did there was a large section that broke off as it formed the Solar System

There was just one thing that formed right in the center of the section that broke off, the sun.

As this was happing, particles got flattened to form things called planetesimals. Some planetesimals formed the planets in our solar system and some formed metros, moons, etc.

Gravity is a very big thing when the question pops up, How was the sun formed?Many particles formed the sun including dead stars, dust, very cold clouds, etc. Over time this little sun that was formed it got hotter and even more dense.Now the thing that brightens the day in the morning and goes down at night would be called the sun!

The inner planets are Mercury, Venus, Earth, and lastly Mars.

They are the four closest planets to the sun The inner planets are closer together, and

smaller than the outer planetsThey are very rocky planets If you didn’t realize that the four inner planets do

not have any rings around them, and none/not many moons…..so you can tell the difference between the inner and outer planets

The four outer planets are Jupiter, Saturn, Uranus, Neptune…(Pluto)

Other than outer planets these are known as the “gas giants”

The outer planets are very large and farther apart compared to the inner planets

As you could tell Saturn has the biggest brightest rings in the solar system

Pluto could be considered an outer planet and it could also be considered as just a large meteor in the sky because its orbit is not correct like a normal planet

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Some similarities are:They all are in the solar system

They all have a tilt so they are not strait up and down.

All have a rounded shape

The outer planets are much larger and have many moons/ringsThe Inner planets are rocky when the outer planets are the gas giants The inner planets have bigger densities than the outer planetsThe outer planets spin much faster than the inner planetsThe inner planets have solid surfaces and the outer are just gas balls with no surface

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