1. Focus: therm, hydro (p. 5,6)

2. de-

3. away, down, not

4. hypo-

5. under, below

6. chron/o

7. time

8. gen

9. birth, produce, race

10. geo

11. earth, ground

12. graph

13. write, written

14. therm

15. heat

16. meter

17. measure

18. hydr/o

19. water

20. onym

21. name, word

22. path

23. feeling, disease

24. phon

25. sound

26. -al

27. like, related to

28. -ant

29. one who, that which

30. -ate

31. to make, to act

32. -ic

33. like, related to

34. -ology

35. study of science

36. -y

37. state, quality, act

38. -ia

39. condition

40. chronothermal

41. geothermal

42. thermometer

43. hypothermia

44. thermal

45. thermography

46. thermogenic

47. dehydrate

48. hydrant

49. hydrothermal

50. hydrogenic

51. hydrophone

52. hydrogeology

53. hydropathy

54. hydrograph

55. hydronomy

56. Thats it! Did you know all of them?