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6 Cards in this Set

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  • Back
What was the Geocentric theory?
earth is the center of solar system

Includes - earth, moon, sun, 5 planets (Mercury, Venus, Mars, Jupiter and Saturn), and sphere of stars

All revolve around the earth
What is the Heliocentric theory? Who invented this theory?
Copernicus in 1543

sun is the center of the solar system

moon revolves around the earth, earth around the sun

daily movement of sun and stars caused by rotation of the earth
How many planets are there? What are the names and the order they are in from closest to the sun to farthest?
Nine Planets

Mercury, Venus, Earth, Mars, Jupiter, Saturn, Uranus, Neptune, and Pluto
What inner planets what are outer?
Divided into Inner, Rocky Planets and Outer, Gas Planets
What are the inner planets? Are they closer or farther from the sun?
Mercury, Venus, Earth, and Mars
Close to the sun
What are the outer planets?
Jupiter, Saturn, Uranus, Neptune and Pluto