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Seasons
Term | Definition |
---|---|
Axis | An imaginary line the extends through the Earth's north pole and out the south pole; tilted at 23.5* |
Rotation | To spin on an axis |
Revolution | Movement in an elliptical path around a center |
Season Cycle | The cycle of summer, fall, winter, and spring due to variation in intensity of the sun and length of day caused by the tilt of the earth |
Day/Night Cycle | The cycle of daytime and nighttime caused by the rotation of the earth about its axis |
Equator | An imaginary line drawn halfway between the north pole and the south pole; divided the Northern and Southern hemispheres |
Hemisphere | Half of a sphere; the Earth is typically divided into the Northern and Southern hemispheres |