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science ch8 lesson1


astronomy the study of the universe
universe everything that exists(including earth, the planets, the stars, and all of space)
telescope a device that collects light and magnifies images to make distant objects appear closer, larger, and brighter
rotation one complete spin on an axis
standard time zone vertical belt, about 15 degrees, wide in longitude, in which all locations have the same time
international date line the 180* line of longitude going west across this line adds one day to the date; going east subtracts a day
revolution one complete trip around the sun
what are 3uses to explore space? artificial satellites, space probes, and space shuttles
earth's ______ and ________ are movements that give earth its days and seasons rotation; revolution
Created by: moncheechee19