Across
- 5. An Earth-centered theory; having or relating to the Earth as the center
- 7. Having or relating to the sun as the center of the solar system
- 10. A _____ discovers information about items too small to see
- 11. A period from the 1500s to the 1700s in which many scientific advances changed people’s traditional beliefs about science
- 12. Substances that consist of atoms of only one kind
- 15. He believed in using logic, reason, and mathematics to find truths
- 16. The attraction that the Earth or another celestial body has on an object on or near its surface
- 19. Their book stated that gravity keeps the solar system together
- 20. The discovery of elements was proved by this Irish scientist
- 21. An explanation of how or why something happens
Down
- 1. Their improvements allowed the discovery of tiny organisms called bacteria
- 2. The steps for an orderly search for knowledge
- 3. Any organized study of the physical world
- 4. A disagreement over his theories delayed the publishing of his book until his dying days
- 6. He arranged living things into groups based on their similarities and differences
- 8. His work described the structure of the human body
- 9. By creating the scientific method, he believed that we should put aside unproven ideas of the past to learn the truth
- 13. One of his ideas stated that the planets do not all travel at the same speed
- 14. Despite his many accomplishments, the Church banned his book from being published
- 17. A _____ is used to learn about larger objects in space, like planets and stars
- 18. The belief that reason and experience must be present for the solution of problems