Earth History

12345678910111213141516171819202122232425
Across
  1. 1. - earth material that are being carried along by wind and water
  2. 4. - scientists who study fossils
  3. 6. record - all the organisms that have existed in Earth’s history that are preserved in rock
  4. 8. - pure substances that ricks are made of
  5. 9. - rock that forms our planet’s crust
  6. 10. - sedimentary rock containing calcite
  7. 12. - scientists who study the Earth
  8. 15. - common mineral composed of calcium, carbon and oxygen. It is what reacted to acid.
  9. 16. - water that carries cement in to the group moving through tiny cracks and spaces between earth materials
  10. 18. - sedimentary rock containing clay and silt
  11. 20. - features of the Earth (ex. Mountain, canyon)
  12. 22. - material that holds particles together to make stone
  13. 23. - means that the way things happen today is the same way things have happened in the past
  14. 24. - vertical distance of the lands surface above sea level
  15. 25. - top layer of Earth’s surface, consisting of rock mineral particles mixed with organic matter
Down
  1. 1. - rocks that are made out of sediment
  2. 2. - sedimentary rock containing sand
  3. 3. - any evidence of past life
  4. 5. - breaking rocks by rubbing and bumping into each other
  5. 7. - the process of separating earth materials by size
  6. 9. - any low place in nature when sediments accumulate
  7. 11. - removal and transportation of loose earth material
  8. 13. - a relationship or connection between rock layers from 2 or more locations
  9. 14. - happens when pressure is applied to a material
  10. 15. - involves the deposition of cement in the spaces between the particles of sediment
  11. 17. - word to describe the process of breaking rocks down into smaller pieces
  12. 19. - settling out of eroded material, usually in a basin
  13. 21. - animal shells and precipitate sink to the bottom to form this