Rock, Soil and Rock cycle

5. Rocks changed by heat and pressure
6. A natural fertiliser made of broken down organic matte
8. A soil with a balance of sand, clay and organic matter
10. The process where liquid magma or lava cools down and becomes solid rock.
14. This metamorphic rock is formed when granite is heated
15. Small pieces of rocks
17. A mixture of broken up rocks, organic matter, water
18. Rocks made from sediments
19. Process of breaking up rocks

1. Igneous rocks formed outside the the Earth's crust
2. Burying of sediments with many layers of sediments above
3. A substance used for killing insects or other organisms that harm crops plants or animals
4. A scientist who studies rocks
7. A fossil where the bones of the whole animal are preserved in minerals
9. A kind of fossil that is made of imprints of animals left in the sediments
11. Preserved remains of plants and animals
12. An igneous rock with larger crystals
13. To put down sediments into rivers and lakes
16. A sedimentary rock made from shells
20. Word that means fire