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Earth in Space
Bonnie Branch 6th Grade - 19-1 / Earth in Space
Term | Definition |
---|---|
astronomy | The study of the moon, stars, and other objects in space |
axis | An imaginary line that passes through Earth’s center and the North and South poles, on which Earth rotates |
rotation | The spinning motion of a planet on its axis |
revolution | The movement of an object around another object |
orbit | The path of an object as it revolves around another object in space |
latitude | The distance north or south from the equator, measured in degrees |
solstice | The two days of the year on which the noon sun is directly overhead at either 23.5° North or 23.5° South latitude |
equinox | The two days of the year on which neither hemisphere is tilted toward or away from the sun |
vernal equinox | The day of the year that marks the beginning of spring in the Northern hemisphere |
autumnal equinox | The day of the year that marks the beginning of fall in the Northern hemisphere |