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stars & planets

vocabulary

TermDefinition
rotate to spin around on an axis
axis an imaginary line that runs through the center of the earth from the north Pole to the south pole
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 rather than 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 revolves around a star in a clear orbit
dwarf planet also revolves around a star but its path is not clear of other objects
comet a ball of rock, ice and frozen gases
star a huge ball of superheated gases
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 in space
Created by: user-2046971
 

 



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