| Across |
| 2. | body of water with land on all sides |
| 4. | high, steep face of rock or earth |
| 6. | land that has water on all sides |
| 8. | flat-topped mountain with steep sides |
| 9. | stream or river that flows into a larger stream or river |
| 11. | triangle-shaped area of land at the mouth of a river |
| 12. | ridge of sand, rock, or coral that lies at or near the surface of a sea or ocean |
| 14. | opening in the earth, often raised, through which lava, rock, ashes, and gases are forced out |
| 17. | land that rises above the land around it |
| 18. | land along a sea or ocean |
| 19. | steep drop from a high place to a lower place in a stream or river |
| 20. | large stream of water that flows across the land |
| 22. | area of grassland and scattered trees |
| 23. | flat land that is near the edges of a river and is formed by silt deposited by floods |
| 24. | part of a sea or ocean extending into the land, usually larger than a bay |
| 26. | bowl-shaped area of land surrounded by higher land |
| 27. | hilly area at the base of a mountain |
| 30. | area of flat land along a sea or ocean |
| 34. | low land between hills or mountains |
| 35. | land that is almost completely surrounded by water |
| 36. | deepest part of a body of water |
| 37. | line on a mountain above which it is too cold for trees to grow |
| 39. | body of salt water smaller than an ocean |
| 40. | place where a river begins |
| 43. | body of salt water larger than a sea |
| 44. | top of a mountain |
| 45. | area along which rivers form waterfalls or rapids as the rivers drop to lower land |
| 46. | area of flat or gently rolling low land |
| 47. | place where a river empties into another body of water |
| 48. | body of shallow water |
| 49. | large ice mass that moves slowly down a mountain or across land |