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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 |