Perfect for beginners with simple, common vocabulary
Mysteries Beneath Earth’s Surface
Explore intriguing subterranean phenomena, from hidden chambers to unusual underground life forms in this crossword puzzle.
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Across
- 1. Horizontal passage leading into a mine
- 2. Refers to heat originating from beneath the Earth's surface
- 4. Deceptive tactic, metaphorically relates to underground secrets
- 5. Large underground hollow spaces often formed by water erosion
- 6. Underground layer that holds and transmits water
- 10. Complex network of underground passages
- 16. Small lump or mass, often mineral formed underground
- 18. Small burrowing mammal known for its tunneling abilities
Down
- 3. Flying mammals that often inhabit caves
- 7. Man-made or natural passage underground
- 8. Arched structure of rock underground
- 9. Icicle-shaped mineral formation hanging from cave ceilings
- 11. An animal adapted to live permanently in caves
- 12. Narrow crack or opening in rock underground
- 13. A subterranean snake that exhibits bioluminescence
- 14. Naturally occurring substance found underground
- 15. A depression or hole formed by collapse of surface land
- 17. Layer of Earth between crust and core
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