History of the Solar System

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Across
  1. 3. Greeks loved these perfect shapes
  2. 7. the star in our solar system
  3. 8. A model of the solar system in which the sun is the center
  4. 9. He believed that Earth was the center of the universe
  5. 10. patterns of stars
  6. 11. A model of the solar system (and universe) in which Earth is at the center
  7. 13. He believed the planets moved around the sun-heliocentric model
  8. 14. the tool Galileo used to look at the stars and planets
Down
  1. 1. He believed the sun, moon, and stars revolved around Earth. And that Earth was the center of the universe with the other planets revolving around the sun
  2. 2. He confirmed the heliocentric model, proved gravity and inertia work together to keep planets and their moon in motion
  3. 4. He used a telescope to make observations proving the heliocentric model when he observed Jupiter's moons and Venus's phases
  4. 5. a scientist who studies stars, planets, and and the things in space
  5. 6. Used Tycho Brahe's model to find that the planets' orbits are elliptical
  6. 8. the Greek word for sun
  7. 12. Kepler found the orbit of each planet was this shape