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Ph. Ch. of Earth

Earth and Space

QuestionAnswer
atmosphere the pocket of air that surrounds the Earth
axis an imaginary line running from the North Pole to the South Pole through the center of the Earth
rotation the spinning of a planet or moon on its axis
crust the solid rock that makes up the outer layer of Earth
mantle the layer of hot, flowing rocks beneath Earth's crust
core the center of the Earth
surface the outermost covering or layer of the Earth
lithosphere the rocky surface of the Earth
hydrosphere all the water on the surface of the Earth and underground, including ice and water vapor
Earth composition the Earth's surface is composed of 25% dry land and 75% is covered with water
day the time during rotation when Earth faces the Sun, and it is lighted; this rotation gives the false appearance that the Sun travels from east to west across the sky
night the time during its rotation when Earth faces away from the Sun, and it is dark; this rotation gives the false appearance that stars move across the sky
Created by: twaller
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