Chapter 3 Vocabulary

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Across
  1. 4. a solid, nonliving substance found in rocks
  2. 5. cannot be replaced by nature easily or quickly (like coal)
  3. 9. a mineral reflects light on its surface
  4. 10. a chemical that is an important nutrient to all living things
  5. 13. wedging a type of weathering that occurs when water soaks into a material, freezes, expands, and causes the material to split or break apart
  6. 14. resource something that people use from nature
  7. 16. how well a mineral resists scratching
  8. 17. a rock formed by a volcano or other source of great heat
Down
  1. 1. can be replaced by nature easily or quickly (like water)
  2. 2. the powder that is left when a mineral is rubbed on a rough surface
  3. 3. can be seen on a mineral's surface
  4. 6. the process of wind or water moving small pieces of rock, soil, and sand from one place to another
  5. 7. slow process that breaks rocks and other Earth materials into smaller pieces
  6. 8. a rock that forms when small bits of materials are pressed together in layers
  7. 11. a rock that was once igneous or sedimentary and changed after being exposed to heat and pressure
  8. 12. a nonmetal element that is used in computer chips and solar cells
  9. 15. the dropping off of eroded soil and bits of rock