Across
- 5. the abstract science of number
- 8. the branch of science concerned with the nature and properties of matter and energy
- 11. Device used to observe objects in space
- 12. discovered cells
- 13. Invented the barometer
- 14. the branch of science that deals with space
Down
- 1. Invented the telescope
- 2. Force that pulls things back to earth
- 3. Scientific method
- 4. Invented the microscope
- 6. Study of living organisms
- 7. Challenged the church
- 9. Clock a clock that uses a swinging weight to keep time
- 10. Laws of motion
- 12. Theory that sun is the center of our galaxy