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Ch.4.1Planets

Solar System

QuestionAnswer
A group of very large planets that are composed mostly of gas. gas giants
The four planets farthest from the sun make up this. outer solar system
The four planets located closest to the sun make up this. inner solar system
A unit of measurement based on the average distance between Earth and the Sun. astronomical unit
A group of planets whose surfaces are hard and rocky. terrestrial planets
This tool made possible the discovery of additional planets. telescope
This group of planets is placed more closely together than the other group. inner planets.
A common method for scientists to measure distances within the solar system is to use this. speed of light
This is the next planet moving outward from the sun after Saturn. Uranus
Why is Pluto not considered a gas giant? It is dense and rocky
Created by: schlanda
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