Across
- 1. tried to discover how things worked
- 5. taught in Alexandria during Ptolemy's time
- 6. Eratosthenes is known as the father of
- 7. were very curious about how things worked
- 10. built a heat ray to defend his town
- 11. was a book about geometry and written by Euclid
Down
- 2. calculated the distance around the earth
- 3. the city where many scientists came to teach and study
- 4. is a device for moving water uphill
- 8. killed Archimedes
- 9. Archimedes was an