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6thGrAstroCh3Sec3-6
6th Grade Astronomy Chapter 3 Sec 3 -6
Question | Answer |
---|---|
greenhouse effect | trapping of heat by the atmosphere |
ring | thin disk of small particles of ice and rock |
gas giants | four largest planets |
coma | outer layer of a comet |
nucleus | solid inner core of a comet |
asteroids | rocky objects |
meteoroid | chunk of rock or dust in space that com from comets or asteroids |
meteor | a streak of light from a meteroroid |
meteorites | meteoroids that pass through the atmosphere and hit earth's surface |
extraterrestrial life | life on other planets |