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Ruggiero Ch 6 VOCAB

Chapter 6 Solar System VOCAB

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
Created by: sbarone