Across
- 3. A useful material found in nature.
- 8. Pressing sediments together tightly.
- 11. A valuable, soft yellow metal often found in mineral form.
- 12. Rock formed when lava or magma cools and hardens.
- 14. The process that turns sediment into rock through compaction and cementation.
- 16. The breaking down of rock into smaller pieces by wind, water, or other natural forces.
- 17. Rock that contains enough valuable mineral to be mined.
- 19. A shiny metal used in jewelry, coins, and electronics.
- 21. Gluing sediments together with minerals to form rock.
Down
- 1. A naturally occurring solid with a specific structure and chemical makeup.
- 2. A resource that takes millions of years to form and can run out.
- 4. Rock changed by heat and pressure inside Earth.
- 5. The preserved remains of ancient living things, often used for fuel.
- 6. Related to Earth’s structure and natural processes.
- 7. Rock formed from layers of compacted and cemented sediments.
- 8. Using natural resources wisely to make them last.
- 9. When eroded material settles in a new place.
- 10. A heavy metal used for nuclear energy.
- 13. A resource that can be replaced quickly or never runs out.
- 15. A fossil fuel made from ancient marine organisms, used for energy.
- 18. The movement of soil, sand, or rock by wind, water, or ice.
- 20. A black fossil fuel formed from ancient plant material.