Chapter 22 Section1

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Across
  1. 4. Copernicus came up with the theory that had a sun centered universe.
  2. 8. During the people replaced old assumptions with new theories.
  3. 10. Used mathematical laws that govern planetary motion to prove planets revolved in an elliptical order, instead of a perfect circle.
  4. 11. An Italian scientist who made observations through a telescope. He proved that Jupiter has moons, the sun has dark spots, and that Aristotle's theory was false, the moon’s surface is rough.
Down
  1. 1. A logical procedure for gathering and testing ideas.
  2. 2. A danish astronomer who studied planetary motion, when he died Kepler continued his work.
  3. 3. This person came up with the idea that motion in the heavens is linked with motion on earth, he called it universal gravitation.
  4. 5. strongly believed that scientists needed to forget old assumptions and teachings, and rely on mathematics and logics, along with that, he created analytical geometry, which connected algebra and geometry
  5. 6. Instead of getting facts based off of abstract theories, wanted scientists to experiment and then draw conclusions, helping create the scientific method.
  6. 7. The theory has the earth located in the center of the universe.
  7. 9. Studied planetary movements to conclude that the planets and stars revolve around the sun.