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Description
Flashcards by Corey Lance, updated more than 1 year ago
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Created by Corey Lance
about 9 years ago
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| Question | Answer |
| THE SUN | Star at the center of the Solar System. It is a nearly perfect sphere of hot plasma. |
| MERCURY | The smallest and innermost planet in the Solar System. |
| VENUS | Venus is the second planet from the Sun, orbiting it every 224.7 Earth days. |
| EARTH | Is the third planet from the Sun, the densest planet in the Solar System, the only known planet to harbor life. |
| MARS | Mars is the fourth planet from the Sun and the second-smallest planet in the Solar System. |
| JUPITER | Jupiter is the fifth planet from the Sun and the largest in the Solar System. |
| SATURN | Saturn is the sixth planet from the Sun and the second-largest in the Solar System, after Jupiter. |
| URANUS | Uranus is the seventh planet from the Sun. It has the third-largest planetary radius and fourth-largest planetary mass in the Solar System. |
| NEPTUNE | Neptune is the eighth and farthest known planet from the Sun in the Solar System. |
| PLUTO | Pluto is a dwarf planet. A dwarf planet travels around, or orbits, the sun just like other planets. But it is much smaller. |
| IO | With over 400 active volcanoes, Io is the most geologically active object in the Solar System. |
| Europa | Slightly smaller than the Moon, Europa is primarily made of silicate rock and has a water-ice crust |
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