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THE SOLAR SYSTEM (There are eight main planets in the solar system and…
THE SOLAR SYSTEM
COMETS
are small balls of ice and rock. When they move nearer the sun, the ice melts and turns to water and gas. this gas becomes the comet's tail.
When the comet moved away from the Sun, it gets colder and its loses its tail.
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THE SUN
The sun is at the center of the solar system .It's more that a million kilometers in diameter and it'is about 4.5 billion years old.
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