Across
- 2. The study of numbers and quantities.
- 4. Scientist who first stated that the Sun is at the center of the Universe.
- 7. Invention used by Galileo to see the stars.
- 9. Newton's principles that explain how stuff moves.
- 10. The Sun and all objects that orbit it.
Down
- 1. Invention used to observe thingss very closely like cells.
- 3. The study of space and stars.
- 5. The study of the fundamental nature of knowledge.
- 6. Someone who invented the laws of motion and gravity.
- 8. An educated guess.