Across
- 4. the breaking of rock into sediments
- 5. A liquid fossil fuel formed from marine organisms that is burned to obtain energy and used in the manufacture of plastics.
- 6. A representation of an object or event
- 7. process in which the minerals found in the earth work to glue sediments into layered rock
- 8. pressure caused by the weight of many layers
- 12. Rock rock that is formed from layers of sediment
- 15. evidence of life from a past time, such as the impressions and remains of organisms
- 17. A scientist who studies fossils
Down
- 1. the state or process of rotting; decay
- 2. dropping of sediments
- 3. small pieces of broken rock and soil
- 9. Gas This is a gas found in the absence of oxygen when petroleum is formed. There is pockets of Natural gas found under ground. Takes millions of years to form. Often used in propane tanks, gas stoves, water heaters, and much more.
- 10. a mark or depression made by pressure
- 11. The moving of sediments
- 13. Rotting away
- 14. fuels Coal, oil, natural gas, and other fuels that are ancient remains of plants and animals.
- 16. A fossil fuel that forms underground from partially decomposed plant material