3-3 & 3-4 Inner and Outer Planets
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4 terms
Terms | Definitions |
|---|---|
 terrestrial planets | The name often give to the four inner planets; Mercury, Venus, Earth, and Mars |
| greenhouse effect | The trapping of heat by a planet's atmosphere |
| gas giant | the name often given to the first four outer planets; Jupiter, Saturn, Uranus, and Neptune |
| ring | a thin disk of small ice and rock particles surrounding a planet |
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