Across
- 3. Italian inventor.
- 4. culture artistic and scientific.
- 5. polish astronomer.
- 7. optical instrument.
- 9. Famous English scientist and mathematician.
- 10. scientific procedure designed to answer questions.
Down
- 1. pay attention.
- 2. attract the objects to center of the earth.
- 6. proposed by Nicolas Copernico.
- 8. laws the movement of the planets.