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science
planets
| Question | Answer |
|---|---|
| One full orbit of an abject around another object is called | a revolution |
| is the path an object takes as it revolves around a star,planet, or moon | orbit |
| is an imaginary line around which a planet spins | axis |
| one whole spin of a object on its axis is called a | rotation |
| are gigantic balls of hot gases that give off ration | stars |
| our sun is | medium star |
| the sun has | no hard spots |
| dark spots on the sun are | sunspots |
| is an explosive eruption of waves and particles into space, much like volcanoes | solar flare |
| is a group of stars that forms a pattern | constellation |
| is called the north star | polaris |
| it is also above the | north pole |
| stars __________ always in the same place in the sky | are not |
| a large, round object that revolves around a star and has cleared the region around its orbit is called | a planet |
| every planet in our solar system revolves around a planet | the sun |
| has almost no atmosphere | mercury |
| is a natural object that revolves around a planet | the moon |
| is one of the brightest objects in the night sky | vensus |
| vensus is the brightest object in the night sky because | its clouds reflect the sun's light so well |
| inner planets in order | Mercury Vensus Earth Mars |
| the four planets in our solar system beyond Mars are called | outer planets |
| which is Neptune's largest moon is thought to be the coldest object in our solar system. | triton |
| a large round object that rotates around the sun but has not cleared the region around its orbit is an | dwarf planet |
| forms when a meteoroid hits Earth's atmosphere | meteor |
| a frozen mass of different types of ice and dust orbiting the orbit of a | comet |
| Meteor shower take place when Earth passes though the orbit of a | comet |
| Today astronomers do not consider Pluto a planet but a | dwarf planet |
| Outer planets | Jupiter Saturn Uranus Neptune |