Across
- 4. what is the most of the rock under the ocean?
- 6. what is the most biodiverse environment on earth?
- 10. Rain slightly acidic, its because it dissolves?
- 12. what are the most common minerals in rock?
- 13. what do rivers mostly carry?
- 15. a teaspoon of soil may contain up to how many bacteria?
- 16. under high pressure, limestone turns into what?
- 18. This rock is mainly quartz
- 19. This rock contains at least three minerals
- 20. when magma cools, what rock does it form?
Down
- 1. what rock is resistant to weathering and breaks down very slowly to sand and clay and stones?
- 2. how is the rock at earth's surface broken down to stones and clay?
- 3. what is one of the most common limestone feature called?
- 5. How many Known minerals are there?
- 6. when sand and clay are mixed with rotting vegetation, what are the results?
- 7. what rock gets forced down into earth's crust?
- 8. when metapmorphic rock is buried further, it gets so hot thats it melts, what is the liquid rock?
- 9. How many years old is the oldest rock in UK?
- 11. what is the hard outer part of earth called when cracked into huge slabs
- 14. This rock is mainly calcite, or calcium carbonite
- 17. what is a fungus combined with algae called?