Across
- 3. all sedimentary particles larger than 2 millimetres is called gravel.gravel is subdivided into pebbles,cobbles and boulders.
- 5. layers,or bands,in rocks
- 6. something that has lasted from a living thing that died long ago.they can be body parts,that have turned into stone or animal tracks
- 8. igneous rock that forms when magma cools on the earths surface
- 9. melted
- 10. the breaking of rocks by water,snow,ice,wind,chemicals,gravity or plant roots
- 11. a scientist that studies geology
- 14. a body of rock with special that allow geologists to map,describe,and name it
- 15. the thick layer of very hot,melted rock between the crust and the core of the earth
- 16. the science of the rocks and minerals that compose the earth,of its structure,and of its history
- 17. fine grained material surrounding larger grains in a sedimentary rock
- 18. loose particles of rock minerals that range from 0.0625-2.0 millimetres in diameter
Down
- 1. soft rock formed from layers of mud sol-very small weathered fragments of rock mixed with decaying plant or animal material
- 2. a solid in which the particles are arranged in a pattern to make shapes with flat surfaces
- 4. molten rock flows out into the earths surface
- 5. material that comes from the weathering of rock or from fragments of plants and animals that settles to the bottom of rivers,lakes,and seas
- 7. rock rock formed from rock types that have weathered,cemented,and/or squeezed together
- 12. substances which cannot be broken down into other substances
- 13. the movement of weathered rocks and soil
- 15. scale a scale used to measure the hardness of a mineral