Across
- 4. gaseous area surrounding earth
- 8. group of parts that make a whole
- 10. part of ocean near land
- 13. long underwater mountain ranges
- 17. gently sloping platform
- 19. evolution of universe theory
- 23. high altitude division of earth
- 25. a proven hypothesis
- 26. an untested theory
- 28. flat areas composed of igneous rocks
- 29. the study of the universe
- 30. the watery division of earth
- 32. Sciences related to the ocean
- 35. the crust and upper mantle
- 36. hydrosphere, biosphere, atmosphere
Down
- 1. submerged volcanoes
- 2. interior of the continents
- 3. slowly flowing part of earth
- 5. The study of the weather
- 6. large groups of mountains
- 7. largest of the “spheres”
- 9. deep drop off
- 11. the time since earth formed
- 12. are between margins and ridge
- 14. deep drops on ocean floor
- 15. all life on earth
- 16. moderately dense portion of earth
- 18. Science study of earths systems
- 20. slope into gradual incline
- 21. system with subsystems
- 22. flat areas in ocean
- 24. the study of earth
- 26. place where the water cycle occurs
- 27. cratons with sediment on top
- 31. the path to becoming a law
- 33. dense inner portion of earth
- 34. thin outer skin of earth