Across
- 2. The movement of planets are elliptical
- 5. Descartes, he wrote about geometry
- 6. Built a ______ and used his observations of planets to prove heliocentric theory
- 7. Made accurate observations of the stars and planets
- 9. A branch of mathematics in which calculations are made using special symbolic notations developed by Isaac newton
- 10. he invented a vacuum pump
Down
- 1. Sir Isaac Newton discovered the laws of _____
- 3. Bacon, Who invented the scientific method
- 4. He thought that the sun was in the center of the solar system
- 8. He was kind of blind for looking at the sun to long
