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Solar System Models

Geocentric and Heliocentric Models

Hipparchus is the first to theAnswer
Hipparchus is the first to the theorize the _________ model. geocentric
The prefix geo means _____________. earth
Orbits of planets are not circles, as Copernicus believed, but stretched out ovals called __________. ellipses
The heliocentric system has the ______ as the center of the solar system. sun
Who wrote the first book on the sun-centered solar system? Copernicus
Who wrote a 13 volume test on how the geocentric system works? Ptolemy
What was invented to show how planets appear to move backwards in the geocentric model? epicycles
Who witnessed Venus going through phases similar to the moon? Galileo
What ancient Greek philosopher first conceived of the heliocentric model? Aristarchus
When Galileo saw moons moving around Jupiter, this was evidence that not everything revolves around the _____________. Earth
Created by: dswick
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