Across
- 6. Age The number of years since a rock was formed.
- 8. Sediments are buried deeply and subjected to pressure from weight of sediment above.
- 9. Minerals stick the grains of sediment together - just like cement.
- 10. Rock that forms when existing rock is exposed to high pressure or high heat or both.
Down
- 1. Rock that forms when melted rock cools and hardens.
- 2. An unstable element that loses energy to become stable
- 3. A geological process where natural forces wear away at rocks and soil.
- 4. Rock that forms from compacted sediment.
- 5. The weather conditions in an area over a long period of time.
- 7. Core A long cylinder of glacial ice recovered by drilling through glaciers in Greenland, Antarctica, and high mountains around the world. They are used primarily to observe climate change.