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5.1 Objects in Sky
Science word list
Question | Answer |
---|---|
meteoroid | a space rock or dust from a comet or broken-up asteroid |
meteor shower | an event where a large number of meteoroids burn up as they enter the earth's atmosphere |
nebula | any of the glowing clouds of gas or dust reflecting the light of nearby stars |
nova | a star that suddenly flares up to many times its original brightness before fading again |
Polaris | the North Star, always above Earth's North Pole |
pulsar | a star that sends energy out in pulses |
quasar | an object about the size of a star that gives off huge amounts of energy |
satellite | an object in space that revolves around a planet |
shooting star | a meteoroid (space rock or dust from a comet or broken-up asteroid) that burns up in the earth's atmosphere; a meteor |
sky | the part of the atmosphere or of outer space visible from the surface of Earth or any other planet |
star | a distant sun glowing from heat produced by nuclear reactions at its center |
Ursa Major | a constellation that can be seen all year in the Northern Hemisphere |