Across
- 4. 1000
- 5. long-term .....
- 8. this crossword title
- 10. the Ph.... goes from 1 to 14
- 11. the most .... logarithm
- 14. dB
- 15. the scale connected with earthquake
Down
- 1. nationality of Joost Burgi
- 2. square ....
- 3. sound.......
- 6. the .... of an earthquake
- 7. how acidic or ... something is
- 8. .....music
- 9. more .... numbers
- 12. Scottish mathematician
- 13. the most common logarithm base