Across
- 2. The sphere of Earth that consists of Earth's waters.
- 3. A steep drop-off that extends from the outer edge of the continental shelf to the floor of the deep ocean.
- 6. The study of the atmosphere and the processes that produce weather and climate.
- 9. The rigid outer layer of Earth that includes the crust and uppermost layer of the mantle.
- 10. Large continuous masses of land on Earth.
- 11. The study of Earth.
- 15. The study of the physical and biological properties of the oceans.
- 16. A hypothesis that has survived the elimination of false hypotheses.
- 17. Old and stable parts of the lithosphere that have been tectonically inactive for a long time.
- 18. The surface of Earth, where you can find the oceans and Continents, as well as the life within.
- 21. The center of Earth, containing two separate inner and outer parts.
- 23. The portion of the seafloor adjacent to major landmasses.
- 27. The study of Earth as a system composed of numerous interacting parts, or subsystems.
- 29. Areas of a continent where younger, flat-lying sedimentary rocks cover an older layer of rock.
- 30. The layer under the lithosphere, where rock is able to slowly flow freely due to the heat deep within Earth.
- 32. A group of interacting parts that form a complex whole.
- 34. A continuous, underwater mountain chain that wraps around the globe, and has most of it lying below the ocean's surface.
- 36. Large underwater crevices in Earth's surface that are primarily consistent with oceanic crust and sea water.
- 37. An untested theory constructed to describe a phenomenon.
Down
- 1. The sphere that consists of all of Earth's life, be it flora or fauna.
- 4. Theory that the bodies of our solar system evolved from an enormous rotating cloud called a solar nebula.
- 5. The middle layer of Earth between the core and crust, having a lower and upper layer.
- 7. The span of time since the formation of Earth.
- 8. The study of the universe.
- 12. Incredibly flat features of the deep ocean floors.
- 13. The areas between continental margins and oceanic ridges.
- 14. The area where a steep continental slope merges into a more gradual incline.
- 19. Submerged volcanic structures that dot the ocean floor.
- 20. Extremely deep depressions occasionally more than 11,000 meters deep at the deep ocean floors.
- 22. The gaseous life-giving sphere that envelops Earth.
- 24. The sphere that contains Earth's grounds, stretching from the crust to the core of Earth.
- 25. Expansive, flat regions of the lithosphere composed primarily of deformed igneous and metamorphic rocks.
- 26. Process in which scientists gather facts through observations and formulate scientific hypotheses and theories.
- 28. The seafloor where the borders of a continent end, and the steep continental slope begins.
- 31. The hydrosphere, atmosphere, biosphere, and geosphere, and all of their components.
- 33. A continuous, underwater mountain range formed by tectonic plates pulling apart.
- 35. A large, elongated group of mountain ranges that share similar structure, and are formed by tectonic plates colliding.