Science words

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Across
  1. 4. A common rock-forming mineral in Earth's crust.
  2. 9. Something that living things need to grow and stay healthy.
  3. 10. Bits of dead plant and animal parts in the soil.
  4. 11. materials, Any nonliving natural resource that makes up Earth, including soil and water.
  5. 13. The carrying away of weathered earth materials by water, wind, or ice.
  6. 17. weathering, The process by which the minerals in a rock can change due to chemicals in water and air. It can cause to rocks to break apart.
  7. 18. A mix of humus, sand, silt, clay, gravel, and/or pebbles.
  8. 19. a river or stream flowing into a larger river or lake.
  9. 20. The rubbing, grinding, and bumping of rocks that cause physical weathering.
Down
  1. 1. A metamorphic rock formed when limestone is subjected to heat and pressure.
  2. 2. weathering, The process by which rocks are broken down by breaking and banging.
  3. 3. A large amount of water flowing over land that is usually dry.
  4. 5. Rocks that are smaller than sand, but bigger than clay.
  5. 6. Are substances that are formed naturally in the Earth.
  6. 7. The sudden movement of earth materials down a slope.
  7. 8. A sedimentary rock made mostly of calcite.
  8. 12. The settling of sediments.
  9. 14. A substance that geologists use to identify rocks that contain calcite.
  10. 15. A large mass of ice moving slowly over land.
  11. 16. A solid earth material made of two or more minerals.