Space Cycle Notes Created by Harris Middle School.

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Presentation transcript:

Space Cycle Notes Created by Harris Middle School

Rotation vs. Revolution

Rotation: Revolution: spin of object on its axis rotates counter-clockwise = west to east = why sun appears to rise in the east and set in the west for Earth = 24 hrs. =1 day responsible for day vs. night Revolution: also called an orbit path of one object around another Earth around sun ≈ 365 days = 1 year moon around Earth ≈ 1 month

The TILT is the reason for seasons! The Earth is tilted on its axis by 23.5.° As a result, the hemisphere that is tilted toward the sun receives more direct sunlight = more heat. causes longer daylight hours hotter temperatures = summer! The hemisphere tilted away from the sun experiences winter. The TILT is the reason for seasons!

For the Northern Hemisphere! = least daylight hours = most daylight hours = Equal hours of day and night