Rocks

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Across
  1. 2. A sedimentary rock formed from plant remains
  2. 4. A sedimentary rock made of rounded pebbles cemented together
  3. 5. Type of sedimentary rock formed from rock fragments
  4. 6. Process where rocks are changed by heat and pressure
  5. 8. The breakdown of rock by natural processes
  6. 10. Molten rock once it reaches Earth’s surface
  7. 14. Rocks formed from compacted and cemented sediments
  8. 15. The movement of weathered material by wind, water, or ice
  9. 17. Metamorphic rocks with mineral grains arranged in bands
  10. 20. Rocks changed by heat and pressure without melting
  11. 21. Igneous rocks rich in iron and magnesium, usually dark in color)
  12. 22. Metamorphic rocks without visible banding
  13. 24. Remains or evidence of ancient life found in rock layers
Down
  1. 1. The continuous set of processes that change rocks over time)
  2. 3. Process by which sediments are laid down in new locations
  3. 7. Molten rock found beneath Earth’s surface
  4. 9. Type of rock formed from cooling magma or lava
  5. 11. The layers of sedimentary rock
  6. 12. The process that turns magma or lava into solid rock
  7. 13. The upward movement of Earth’s crust
  8. 14. Principle stating that lower rock layers are older than those above them
  9. 15. Igneous rocks that form at Earth’s surface
  10. 16. General term for any naturally occurring solid made of minerals
  11. 18. Preserved remains or traces of past life found in rock
  12. 19. Igneous rocks that form below Earth’s surface
  13. 23. Light-colored igneous rocks rich in silica