Across
- 3. drive
- 7. il,im,in,ir
- 10. hear
- 11. medi
- 12. aud,audio,audit
- 13. aster,astr,astro
- 15. gee,geo,terr
- 16. land,earth
- 18. warm,heat,hot
- 19. therm,thermy
- 20. ten,tenth part
Down
- 1. put,place
- 2. in the middle
- 4. sour,bitter,sharp,harsh
- 5. pel,puls
- 6. acri
- 8. in,into,within
- 9. pon,posit
- 14. star
- 17. part dec,decem,deca,deci
