Across
- 3. Sailed in 1942 to find America
- 6. Who invented the microscope.
- 7. Found the position of more than 750 stars.
- 10. This helped lead to the Scientific Revolution.
Down
- 1. Used to examen stars
- 2. He was the first to find out Mars moves in an orbit.
- 4. He invited four theories.
- 5. Who invented the thermometer.
- 8. A scientific instrument that measures air pressure.
- 9. Used to solve complex problems