Across
- 4. process where dissolved minerals glue sediments together to form rock.
- 6. records- The total number of fossils discovered and the information they provide about Earth's history.
- 7. and cementation- Two steps in forming sedimentary rocks.
- 9. the process where forces inside earth push rock up to the surface.
- 10. rock found below Earth's surface.
- 12. when magma or lave hardens into igneous rock.
- 14. Solid rock becomes liquid magma due to high temperatures.
- 15. the movement of weathered rock or sediments by wind, water, or ice.
- 16. matter- Materials from once living organisms often of sediments.
- 18. cycle- the continuous process of rock formation and transformation between types.
- 19. and pressure- Conditions deep underground that change rock into metamorphic rock.
- 22. Rock- Rock formed when magma or lava cools and hardens.
- 23. Igneous Rock- Formed when lava cools quickly on Earth's surface.
- 25. fossil- A fossil- of an organism that lived for a short time but was widespread, used to help date rock layers.
- 26. The dropping of sediments in a new location.
- 29. Small pieces of rock, minerals, or organic materials.
- 30. The process where sediments settles in horizontal layers.
- 31. Lava that has reached Earth's surface.
Down
- 1. Igneous Rock- Formed when magma cools slowly beneath Earth's surface.
- 2. The general term for turning sediment into rock.
- 3. rock- rock formed from layers of sediments that are compacted and cemented together.
- 5. A naturally occurring solid substance with a definite chemical makeup and crystal structure.
- 8. Rock- Rock formed when existing rock is changed by heat and pressure.
- 11. time scale- A timeline that divides Earth's history into different periods based on fossils and rock layers.
- 13. breakdown of rocks into smaller particles by wind, water, ice, or biological activity.
- 17. The formation of crystals as magma or lava cools.
- 20. Dating- Determining the exact age of a fossil or rock using radioactive elements.
- 21. The process of pressing sediments together under pressure.
- 24. The way organisms are protected and remains intact in the rock record.
- 27. dating- Determining the age of a rock layer compared to others.
- 28. Preserved remains or those of living organisms from the past.
