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Unit 2 Stack 2

6.9 A Seasons

TermDefinition
Axis An imaginary line about which a celestial body rotates
Hemisphere Half of a sphere; one of the two halves of Earth that are divided by the equator
Orbit The path of an object around another object; in space, a regularly repeating curved path
Revolution The completion of one full orbit
Season One of the four periods into which the year is divided (winter, spring, summer, and fall/autumn); caused by Earth’s tilt on its axis as it revolves around the sun
Tilt The angle or slant of an object when it is rotated from a vertical or horizontal position; Earth’s axis is tilted at a 23.5-degree angle
Created by: user-1966742
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