Geography Crossword

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Across
  1. 4. how easily a mineral can be scratched; measured on the Mohs hardness scale
  2. 7. number of smooth planes a mineral breaks along
  3. 11. property of rocks and mineral used to identify them
  4. 12. a device that measure the difference in gravity between one location and the next
  5. 14. collection of geophysical data such as differences in magnetic fields and gravity fields and gravity fields between different geological locations
  6. 17. rock formed from compacted mud, sand or pebbles, or the remains of living things
  7. 20. occurs when rock is subjected to uneven pressure
  8. 21. small rock particle; grain size can be used to identify rock type
  9. 22. movement of sediment to another area
  10. 23. process of formation and destruction of different rock types
  11. 25. mineral containing a large amount of useful metal
  12. 27. hot, molten rock that comes to the surface of the Earth in a volcanic eruption
  13. 28. round rocks produced by onion-skin weathering
  14. 31. process of weathering in which repeated freezing and melting of water expands cracks in rock so that eventually part of the rock splits off
  15. 32. characteristic
  16. 33. a mineral that only forms under a particular temperature and pressure; used to determine the history of the mineral
Down
  1. 1. breakdown of rocks and minerals by movement of water and animals, and extremes of temperature
  2. 2. shiniess
  3. 3. colour of powdered or crushed mineral
  4. 5. scientist who studies rocks
  5. 6. rock formed at the Earth's surface by quickly cooling lava
  6. 8. rock formed underground by slowly cooling magma
  7. 9. weathering of rock where the outside of the rock peels off
  8. 10. property of rocks used to identify them
  9. 13. rock formed from other rocks that have experienced intense heat and pressure
  10. 15. scientists who studies fossils
  11. 16. hot, molten rock inside the Earth
  12. 18. a device the detects the difference in magnetic field between one location to the next
  13. 19. naturally occurring solid substance with its own chemical composition, structure and properties
  14. 24. small, organised particle in rocks, which has smooth sides and sharp edges
  15. 26. the physical interaction between moving charged particles and the magnetic field that is created as a result
  16. 29. property of rocks used to identify them
  17. 30. rock rock formed by cooling magma and lava