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Less Than Five - How was Planet Earth Formed?

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Gravitational forces helped shape Earth's layers.
The densest materials sank to the middle of the Earth, while the least dense is the top layer.

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After Earth Formed, it grew massive and generated thermal energy.
Gravity pulled in the irregular bumps, it developed into a relatively spherical planet.

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Force of gravity played a major role in the formation of our solar system.
The solar system formed from a cloud of gas, ice, and dust called a nebula. Gravity pulled the materials together. It shrank, and flattened into a disk. It began to spin, the materials in the middle became the sun, and the remaining bits formed the planets

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Origin of the Earth - The Solar Nebula Hypothesis

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Cryosphere

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Sphere
Geosphere
Gravity
Density

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Mass and distance affect the strength of the gravitational force between object.

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Atmosphere
Biosphere
Hydrosphere
Geosphere