Across
- 4. The earth is the center of the solar system
- 5. The sun is the center of the solar system
- 8. Invented the heliocentric system
- 9. Invented the geocentric system
- 10. Isaac Newton wrote this book
Down
- 1. Upgraded the telescope
- 2. A device used to magnify far away objects
- 3. Excommunicated scientists teaching heliocentrism
- 6. Discovered gravity
- 7. The branch of science that deals with the identification of substances