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Seasons Vocab
Vocabulary for 8th Grade Pre-AP Seasons Unit
Term | Definition |
---|---|
Rotation | To spin on an axis or the spinning of the Earth on its axis that causes day and night to occur. |
Axis | The imaginary line through the Earth that extends from the north pole to the south pole and id the center of the Earth's rotation. |
Tilt | The slant of Earth's axis, which is 23.5 degrees from vertical compared to Earth's orbital plane around the Sun. As a result, the North Pole always points toward the North Star. |
Revolution | Move in an Elliptical path around a center |
Orbital Path | The gravitationally-curved path of an object around a point in space |
Seasons | The four natural divisions of the year based on changes in temperature due to the varied amounts of sunlight (both intensity and number of daylight hours received) caused by the tilt of Earth during revolution. |
Hemisphere | Half of a sphere; the Earth and the Celestial sphere can be divided into norther and southern or eastern and western hemispheres. |
Direct/Indirect | Direct: The shortest possible way without intermediates. Indirect: any way other than the shortest way, possibly involving intermediates. Temperatures are higher where the Sun'd rays are direct and lower where the Suns's rays are indirect |