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stars and planets

vocabulary

TermDefinition
rotate to spin around an axis.
axis an imaginary line that runs through the middle of the earth.
revolve to travel in a closed path around the sun.
orbit an objects path in space around another object.
moon a small planet-like body that revolves around the earth and not the sun.
phases as the moon revolves around the earth, different amounts of its lit surface can be seen.
solar system is a group of objects in space that orbit a star in the center, plus the star itself.
planet is a large object that revolve around a star.
dwarf planet a smaller planet.
comet a ball of rock made of minerals, ice, and gases.
star a super-heated ball of gas.
sun a star that is at the center of our solar system.
constellation a group of stars that form an imaginary picture in the sky.
galaxy a huge system of gases, dust, and stars.
universe everything that exists.
Created by: user-2046969
 

 



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