Unit 3 Review Crossword

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Across
  1. 2. What was the name of the supercontinent proposed by Wegener?
  2. 4. What is a break in the Earth's crust called?
  3. 6. What type of plates cause earthquakes and volcanic eruptions?
  4. 8. What is the rigid layer made of the upper mantle and crust?
  5. 9. What is the primary composition of oceanic crust?
  6. 13. What type of resource can be replaced naturally?
  7. 15. What term describes the color of a mineral when powdered?
  8. 16. What process caused heavier elements to sink to the center of the Earth?
  9. 20. What type of rock changes form due to heat and pressure?
  10. 25. Who proposed the theory of Continental Drift?
  11. 26. What is a liquid fossil fuel derived from ancient organisms?
  12. 27. What term describes how a mineral reflects light?
  13. 28. What type of rock forms from cooled magma?
  14. 31. What process turns sediments into solid rock?
  15. 34. What type of resource cannot be replaced easily?
  16. 35. What type of waves help us study Earth's layers?
  17. 36. What is the slushy mix of molten rock called?
  18. 37. What do we call magma that flows onto the Earth's surface?
  19. 38. What is the largest layer of the Earth?
  20. 40. What scale is used to measure the hardness of minerals?
  21. 41. What is the innermost layer of the Earth?
  22. 42. What process breaks rocks into smaller pieces?
Down
  1. 1. What type of gas is used for heating and cooking?
  2. 3. What type of energy comes from the heat within the Earth?
  3. 4. What type of fuel is formed from the remains of living organisms?
  4. 5. What is the primary composition of continental crust?
  5. 7. What is the semi-rigid part of the middle mantle?
  6. 10. What term describes how a mineral feels to the touch?
  7. 11. What are the large sections of Earth's crust called?
  8. 12. What term describes how a mineral breaks along its planes of weakness?
  9. 14. What type of currents cause the movement of the mantle?
  10. 17. What term describes when a mineral breaks with rough edges?
  11. 18. What type of rock forms from sediments?
  12. 19. What is the outermost layer of the Earth?
  13. 21. What type of energy is generated from flowing water?
  14. 22. What is a solid fossil fuel formed from ancient plants?
  15. 23. What is the name of the area known for frequent earthquakes and volcanoes?
  16. 24. What term describes how tightly packed atoms are in a substance?
  17. 29. What type of valley can form at divergent boundaries?
  18. 30. What type of energy is generated by moving air?
  19. 32. What can be formed by subduction of oceanic plates?
  20. 33. What type of energy source comes from living or recently living organisms?
  21. 35. What type of energy comes from the sun?
  22. 39. What geological feature can occur at convergent boundaries?
  23. 43. What process involves the removal and transport of sediment?
  24. 44. What type of energy is released from the nucleus of atoms?