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seasons
Term | Definition |
---|---|
Axis | An imaginary line drawn halfway between the northern and southern poles; divides the Northern and Southern hemispheres |
Rotation | To spin on 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 the day caused by the tilt of the earth. |
Day/night cycle | The cycle of the daytime and nighttime caused by rotation of the Earth about its axis. |
Equator | An imaginary line that extends through the earth's north pole and out of the south pole; tilted at 23.5 |
Hemisphere | Half of a sphere; The Earth is typically divided into the Northern and Southern hemispheres. |