Name given to the four inner planets

Name given to the four outer planets

Cold mixture of dust and ice with a tail

A rocky object that revolves around the sun

Name given to objects that revolve around another object in space

What something is made of..

An outer layer of something

The ratio of the length in a drawing to the true length of the object

A representation of a process or object too big, too small, or too hard to understand

Gases around a planet

Correct order from largest to smallest

The term Light Year means..

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