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Geology ALL important terms

Terms in this set (11)

(ch. 1) Three thousand years
ago, people observed the
heavens: (pt. 1)
(ch. 1) They did not know: (pt.2)
Pt. 1:
-The stars
appear
fixed relative to each
other
-All the stars
appear to rotate
about a fixed
point
-The planets move against the background of
stars
Pt. 2:
-Earth
is a
planet
-How
heavenly bodies
move
(ch. 1) The ancients thought the Universe was
geocentric. What does this mean?
-Motionless Earth at center
of Universe circled by moon
and planets
-Ptolemy
(100-170 C.E.) proposed equations to predict the
movements of
planets
(ch. 1) The
heliocentric
model gained
acceptance during the
15th century. What does this mean?
-The sun at center of Universe
-Earth and planets orbited
the sun
-Copernicus, Galileo, and Newton
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