Across
- 1. rock formed from sediment deposited by water or air.
- 3. current movement in a gas or liquid in which the warmer parts move up and the cooler parts move down
- 5. Weathering the weakening of rock by plants, animals and microbes
- 7. Weathering the process of rockes breaking apart without changing their chemical composition.
- 9. a large volcanic crater, especially one formed by a major eruption leading to the collapse of the mouth of the volcano.
- 10. rock formed from solidification of lava or magma.
Down
- 2. rock that has undergone transformation by heat and pressure.
- 4. the arrangement of the natural and artificial physical features of an area
- 6. hot fluid or semi-fluid material below or within the earth's crust from which lava and other igneous rock is formed on salts.
- 8. plate plates which float on and travel in dependently over the earths mantle.
- 11. the action or process in plate tectonics of the edge of one crustal plate descending below the edge of another