Across
- 4. What is our presentation about?
- 5. Where was Hipparchus born?
- 7. What did Aristarchus use to estimate values?
- 8. Who first used trigonometry?
- 9. Who created the Heliocentric model?
- 10. How did Aristarchus die?
- 11. What book did Ptolemy create?
Down
- 1. What did Astronomers research?
- 2. Who built onto Aristotle's systems?
- 3. Where was Aristarchus born?
- 6. Where did Ptolemy live?
- 9. Who figured out the earth was spherical?