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Across 3. a part of the revolution where Earth's axis is the most toward or away from the Sun 4. the imaginary line that runs through the center of the earth from the north pole to the south pole 5. the spinning of an object on its axis 6. the path an object follows as it moves around another object 7. literally means "half sphere"; the top or bottom half of the earth 10. a part of the revolution when Earth's axis does not lean toward or away from the Sun 11. an object that moves in a straight line until acted upon

Down 1. the movement of one object around another object 2. distance measured in degrees above or below the equator 3. changes caused in the sun's angle above the horizon due to the tilt of the Earth's axis 8. an imaginary line that divides Earth into the North & South Hemispheres 9. The shadowing of one object by another