Rocks

2. Deposit left by movement of a glacier
6. Stones made of mud
8. A fine-grained sedimentary rock form in layers
10. A flat open land besides a river where sediments are deposited during floods
11. Another word for shiny
13. cut mining/ mining that scours out soil and rocks from the surface
15. larger bodies of ice
17. A dark, igneous rock formed from gassy lava
18. Extraction of natural resources from the earth
19. A rock that forms when frothy lava cools in the air

1. A hot mixture of molten rock and gases
3. A black and glossy rock that breaks into shell like surfaces
4. A pure substance made of one atom
5. ores/ Rocks mined to obtain metal or other chemicals within them
7. A measure of how hard it is to scratch a solid item
9. Sedimentary rocks with medium sized grains
12. a fine-grained sedimentary rock which leaves very sharp edges when broken
14. salt/ A rock formed when a sea lake or seabed dries up
15. A hard, igneous rock with multicolour crystals large enough to see
16. A sedimentary rock from by dead animals and plants