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Unit 8
Solar System
| Term | Definition |
|---|---|
| SUN | THE STAR THAT IS THE SOURCE OF LIGHT AND HEAT FOR THE PLANETS IN THE SOLAR SYSTEM |
| PLANETS | ANY CELESTIAL (OTHER THAN COMETS OR SATELLITES) THAT REVOLVES AROUND A STAR |
| MOON | THE NATURAL SATELLITE OF THE EARTH |
| METEORS | ANY OF THE SMALL SOLID EXTRATERRESTRIAL BODIES THAT HITS THE EARTHS ATMOSPHERE (SHOOTING STAR) |
| ASTEROIDS | COMPOSED OF ROCK AND METAL THAT MOVES AROUND THE SUN |
| COMETS | SMALL ICY OBJECTS THAT ORBITS THE SUN AND HAS A LONG TAIL OF GAS |
| SATELLITE | AN OBJECT THAT REVOLVES AROUND ANOTHER OBJECT IN SPACE, EITHER MAN-MADE OR NATURALLY OCCURRING; SUCH AS THE MOON |
| ROCKET | A JET ENGINE THAT GOES INTO OUTERSPACE |
| ISS | INTERNATIONAL SPACE STATION |
| SHUTTLE | A REUSABLE SPACECRAFT WITH WINGS FOR A CONTROLLED DESCENT THROUGH THE EARTHS ATMOSPHERE |
| ELLIPTICAL ORBIT | THE PATH OF AN OBJECT TAKES |
| GRAVITY | THE FORCE OF ATTRACTION BETWEEN ALL MASSES IN THE UNIVERSE |
| CELESTIAL BODY | A NATURAL OBJECT VISABLE IN THE SKY |