Across
- 2. Ancient city of the Pharaohs, once the capital of Egypt
- 4. Inventor of the telephone
- 7. First woman to travel in space
- 10. Ancient city known for its Hanging Gardens
- 11. Element with the symbol ‘Hg’
- 12. Famous mathematician who invented calculus (last name)
- 14. Mathematical constant approximately equal to 3.14159
- 15. Longest river in the world
Down
- 1. Ancient Greek philosopher known for the theory of forms
- 3. Classical composer known for his "Symphony No. 9"
- 5. The capital of Japan
- 6. Actor who played the role of Harry Potter in the films
- 8. First artificial Earth satellite, launched in 1957
- 9. Author of 1984 and Animal Farm
- 13. Largest moon of Saturn