Across
- 2. Tunnels or tubes in lava formed when the outer surface of a lava flow cools and hardens while the molten lava within continues to flow and eventually drains out through the newly formed tube.
- 4. Also called littoral caves are formed primarily from erosion caused by waves.
- 9. A salt found in nature as chalk or calcite or aragonite or limestone.
- 10. Structures that grow from the cave floor.
- 11. The geological process in which earthen materials are worn away and transported by natural forces such as wind or water.
- 12. A geographic area where plants, animals, and other organisms, as well as weather and landscape, work together to form a bubble of life.
Down
- 1. Are formed by a mass movement of the bedrock - the rocks separate along joints or fractures, and are pulled apart mechanically.
- 3. Also called cavern, natural opening in the earth large enough for human exploration.
- 4. Structures that hang from the ceiling of a cave.
- 5. The non-living part of an ecosystem that shapes its environment.
- 6. A colorless, transparent, odorless liquid that forms the seas, lakes, rivers, and rain and is the basis of the fluids of living organisms.
- 7. The living organism that shapes its environment.
- 8. A large, perennial accumulation of crystalline ice, snow, rock, sediment, and often liquid water that originates on land and moves down slope under the influence of its own weight and gravity.