Across
- 3. Parts of plants under the ground
- 5. A very old bone or plant in rocks
- 8. A person who works under the ground
- 9. Hard pieces of the Earth's surface
- 10. A tiny insect that lives in the soil
- 11. The dirt where plants grow
- 13. A tiny part of a plant that grows in soil
- 16. A large hole inside a mountain or underground
- 17. A passage dug underground
Down
- 1. An empty space in the ground
- 2. Small creatures that live in the soil
- 4. Tiny grains found on beaches
- 5. The part of your body that touches the ground
- 6. A hole in the ground made by an animal
- 7. Green plants that cover the ground
- 12. Melted rock from a volcano
- 14. A small, smooth rock
- 15. Wet soil
- 16. A type of soil used to make pottery