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Objects in Space
Unit 10
Question | Answer |
---|---|
Comet | made of ice, dust, and rocks; called "dirty snowballs"; have long tails due to getting close to the sun; have very large orbits around the sun |
Asteriods | Small, rocky bodies that revolve around the sun; mostly found between Mars and Jupiter |
Asteriod Belt | A region between Mars and Jupiter in which most asteriods orbit the sun |
Meteoriods | Smaller than asteriods; rocky and metallic; travels through space; probably pieces of asteroids |
Meteors | A bright streak of light cause by a meteoroid burning up in the Earth's atmosphere; sometimes known as "Shooting Stars" |
Meteorites | A meteoroid that hits the Earth's surface without completely burning up |
Meteor shower | Large numbers of meteors burning in the Earth's atmosphere at same time |
Terrestrial Planets | The four inner planets (Mercury, Venus, Earth, & Mars) that have rocky surfaces; Earth-like planets |
Gas Giants | The four outer planets that are massive and are made of different types of gases; these planets have large atmospheres |
Planet | Greek for "wanderer"; originally thought to be wandering stars by ancient astronomers |