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earth

earth, sun, and moon words

TermDefinition
Astronomy The study of the moon, stars, and other objects in space.
Axis Imaginary line that passes through Earth's center and the north and south poles
Rotation Spinning of Earth on its axis.
Revolution The movement of one object around another.
Orbit A path.
Solstice When the sun is farthest North or South of the equator.
Equinox Neither hemisphere is tilted toward or away from the sun
Gravity Forces that attract all objects all objects toward each other
law of universal gravitation Every object in the universe attracts every other object
Mass The amount of matter in an object
Weight A measure of the force of gravity on an object.
Inertia The tendency of an object to resist any change in its motion.
Newton’s First Law of Motion an object at rest will stay at rest and an object in motion will stay in motion with a constant speed and direction
Created by: rub3nr0m3r0