Across
- 2. Created the idea of universal gravitation
- 4. Physicist found that only part of the air is used in respiration; helped discover oxygen
- 6. Study of stars on human behavior
Down
- 1. Term used to state that earth is simply one of several planets to orbit around the sun
- 3. Study of metals through purification
- 4. Writer of "On the Motion of Animals" and studied mechanics of bodies
- 5. Creator of Laws of Planetary Motion: (Planets move elliptical, not uniformly)