Across
- 2. people once believed this organ was the key to the circulatory system
- 3. the substance involved in Boyle's law
- 4. how many laws of gravity there currently are
- 8. Planets have this type of orbit, not circles
- 11. stated that the sun was the center of the universe
- 14. group that attacked Galileo for his new ideas
- 15. this type of reasoning involves using experiments to prove your ideas
- 16. "Earth" centered universe
- 18. he developed the scientific method
- 19. created the laws of gravity
- 20. this spread new ideas quickly
Down
- 1. His most famous quote is "I think, therefore I am"
- 4. Galileo invented this new scientific tool
- 5. "Sun" centered universe
- 6. he developed the hydraulic press and syringes
- 7. person who developed the laws of planetary motion
- 9. people used to believe the moon was made of this
- 10. sometimes geocentric is called this instead
- 12. Descartes believed this was the chief source of knowledge
- 13. Harvey and Vesalius made great advancements in this scientific field
- 17. why the Earth experiences days and nights