Across
- 2. rocks made from layers of rock particles, sand and mud.
- 6. tiny particles of a rock.
- 7. rocks formed from melted rock (magma or lava) inside or outside the Earth.
- 8. a scientist who studies fossils.
- 10. the hard remains of prehistoric living things found inside rocks.
- 13. special quality of a material, how it looks, feels or acts.
- 14. a scientist who studies the rocks at the Earth surface.
- 15. a way of measuring something that increases in equal parts.
Down
- 1. a very small piece of something.
- 3. rocks that have been changed by heat or pressure (squashing).
- 4. the outer layer of the Earth
- 5. the hot, liquid rock from a volcano.
- 8. to keep something the same forever.
- 9. a precious or rare rock that can be polished and used in jewelry, such as ruby and emerald.
- 11. to be broken into smaller pieces by the wind or water; to wear away.
- 12. particles of rocks; they can be shiny and transparent like glass.