Across
- 1. – The process by which rocks are broken down into smaller pieces by physical or chemical means.
- 3. – The process by which sediments settle out of water or wind and accumulate in layers.
- 4. – The process by which sediments are pressed together under pressure, reducing the space between them.
- 8. – A type of rock that forms from the compaction and cementation of sediment over time.
- 9. – A liquid fossil fuel formed from the remains of microorganisms found in ancient seas, used as a source of energy.
- 10. – A natural fuel such as coal, oil, or natural gas formed from the remains of ancient plants and animals.
Down
- 2. – The process by which rock, soil, and other materials are broken down and carried away by wind, water, or ice.
- 4. – The process in which dissolved minerals crystallize and glue particles of sediment together into solid rock.
- 5. – Small pieces of rock, mineral, and organic material that are moved and deposited by water, wind, or ice.
- 6. – A gaseous fossil fuel formed from the remains of ancient microorganisms, used for heating and energy production.
- 7. – A solid, nonrenewable fossil fuel that forms from the remains of ancient plants found in swampy regions.