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Ruggiero Ch 6 VOCAB
Chapter 6 Solar System VOCAB
| Term | Definition |
|---|---|
| star | an object in space that produces its own light and heat |
| astronomical unit | the distance between the Earth and the Sun |
| fusion | smashing together of particles to create new particles |
| solar system | the Sun and objects in orbit around it |
| telescope | A tool that makes distant objects appear closer and larger |
| moon | an object that circles around a planet |
| satellite | an object in space that circles around another object |
| asteroid | a large piece of rock or metal in space |
| comet | a piece of ice mixed with rocks, dust, and gases moving through space |
| meteor | a small piece of rock, ice, or metal that enters Earth's atmoshpere |
| gravity | the force of attraction between two masses |
| orbit | the path an object takes as it travels around another object |
| inertia | the tendency of a moving object to continue moving in a straight line |
| ellipse | a flattened circle. The shape of the orbit the planets take around the Sun |
| tide | the rise and fall of the oceans surface |