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