Across
- 2. The pull of the Earth or other bodies in space on objects that are on or near them
- 5. a period from the 1500s to the 1700s in which many scientific advances changed people's traditional beliefs
- 6. to increase in number, volume, or scope
- 7. The sun and the planets move around the earth
- 9. Sun-centered, theory of the universe
Down
- 1. 5 steps for an orderly search for knowledge
- 3. the belief that reason and experience must be present for the solution of problems
- 4. An explanation for how or why something happens
- 8. The idea that the planets move in oval paths
- 10. basic materials that cannot be broken down into simpler parts