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Science ch. 5
Chapter 5 vocab./terms
Term | Definition |
---|---|
asteroid | a small, rocky object that orbits the Sun |
comet | a small, orbiting body made of dust, ice and frozen gases |
meteor | a streak of light caused by a chunk of matter that enters Earth's atmosphere |
meteorite | a meteoroid that hits the ground |
meteoroid | one of the chunks of matter that enters Earth's atmosphere and causes a meteor. |
planet | a large body that revolves around the Sun |
solar system | the Sun and all the bodies that revolve around it |
inner planets | the four planets closest to the Sun |
outer planets | the four planets farthest from the Sun |
light-year | the distance that light travels in one year |
magnitude | the brightness of a star |
star | a large sphere of glowing gases |