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ch.23

Sun-Earth-Moon system

QuestionAnswer
sphere a round 3D object
axis imaginary vertical line on which the earth spins
rotation the spinning of the earth on its axis
revolution the earths yearly orbit around the sun
ellipse an elongated closed curve
solstice the day when the sun reaches its greatest distance north or sout of the equator
equinox when the sun is directly above the equator
moon phase different appearances to the earth that the moon takes
new mooon when the moon is between the earth and the sun
full moon when the surface of th moon toward earth reflects light
waxing you start to see more and more of the illuminated part of the moon
waning you start to see less and less of the illuminted part of the moon
solar eclipse when the moon moves directly between the sun and earth and casts a shadow on the earth
lunar eclipse when the earths shadow falls on the moon
maria resulting dark flat reigons of the moon
impact basin an impression left behind from an object striking the moon
Created by: STEPHEN!
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