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Astronomy Science 7

Science 7 Astronomy

Rotation to spin in place around an axis
Revolution to circulate around an object (synonym = orbit)
Orbit to circulate around an object (synonym = revolution)
Lunar cycle the cyclic orbit of the moon around Earth lasting approximately 30 days
Gravity the force that attracts any object with mass towards each other (the force that keeps the planets in orbit around the sun and the moon around Earth)
Asteroid an object in space made of dust and rocks
Comet an object in space made of dust, rocks and ice. Most often associated with a “tail” and commonly called a “shooting star”