Across
- 3. Famous for studying motion and gravity
- 5. Careful watching in science
- 6. Sun-centered model of the universe
- 8. Scientist who said the sun is the center
- 9. Big change in thinking
- 10. Force that pulls objects down
Down
- 1. Italian scientist who improved the telescope
- 2. Tool used to look at space
- 4. Study of the natural world
- 7. A test done to learn something