Across
- 2. Invented the first microscope.
- 3. Improved the astronomical telescope, was the first to observe the craters and mountains on the moon, the first to observe four of Jupiter's moons.
- 10. Perfected the single lens microscope, became one of the first people to see cells and bacteria.
- 13. Greek philosopher who believed that the Earth was the center of the universe and other heavenly bodies revolved around it.
- 14. It was used to convert experiments and observations into scientific laws.
- 15. Invented a system for naming chemical elements; considered the founder of modern chemistry.
- 18. Careful, step-by-step process used to confirm findings and to prove or disprove a hypothesis.
- 20. Discovered that arteries carried blood but many of his ideas about human anatomy proved to be wrong.
- 22. Developed an ointment for preventing infections, discovered a better way to seal wounds, and introduced the use of artificial limbs.
- 23. Force that pulls objects in Earth's sphere to the center of the Earth.
- 26. A branch of mathematics in which calculations are made using special symbolic notations.
- 27. Explained that all matter was composed of tiny particles that behaved in knowable ways; explained the effects of temperature and pressure on gases.
Down
- 1. It along with the Reformation encouraged new ways of thinking about the physical world.
- 4. Calculated the orbits of planets revolving around the sun. He proved that planets move in elliptical orbits.
- 5. Described the circulation of the blood through the body.
- 6. Agreed with Aristotle idea about a geocentric model of the universe.
- 7. Contributed to the development of the scientific method; stressed experimentation and observation to find truth.
- 8. Contributed to the development of the scientific method; stressed human reasoning as the best way to find and understand what is true.
- 9. Explained why planets moved as they did around the sun by developing the universal laws of gravitation and contributed to the development of calculus.
- 11. Based on the belief that the sun is the center of the universe.
- 12. Published the first accurate and detailed study of human anatomy.
- 16. Based on the belief that the Earth is the center of the universe.
- 17. His research provided evidence to support Copernicus' theory.
- 19. An unproved theory accepted for the purpose of explaining certain facts or to provide a basis for further investigation.
- 21. Proposed a heliocentric model of the universe.
- 24. Experimented with how liquids behave under pressure; contributed to the development of syringes and the hydraulic press.
- 25. The power of the mind to think, understand, and form judgements by a process of logic.
