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Ch 11-sun-earth-moon
Question | Answer |
---|---|
a round, three demential object whose surface is the same distance from its center at all points | sphere |
imaginary vertical line around which Earth spins | axis |
spinning of the Earth on its imaginary axis, which takes about 24 hours to complete and causes day and night | rotation |
Earths yearly orbit around the sun | revolution |
elongated, closed curve such as Earths orbit around the sun | ellipse |
day when the sun reaches its greatest distance north and south of the equator | solstice |
occurs when the sun is directly above earths equator and the number of day and night hours are nearly equal | equinox |
change in appearance of the moon as viewed from earth, due to the relation positions of the moon, earth, and sun | moon phase |
describes phases following a new moon, as more of the moons lighted side becomes visible | waxing |
phase that occurs when all of the moons surface facing earth reflects light | full moon |
describes phases that occur after a full moon, as the visible lighted side of the moon grows smaller | waning |
occurs when the moon passes directly between the sun and the earth and casts a shadow over part of the earth | solar eclipse |
occurs when the earths shadow falls on the moon | lunar eclipse |
dark-colored, relatively flat regions of the moon formed when ancient lava reached the surface and filled craters on the moons surface | maria |
a hollow left on the surface of the moon caused by an object striking its surface | impact basin |