Methods of Separation

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Across
  1. 1. : Same throughout, like salt water
  2. 4. : Separation using a magnet
  3. 5. : What farmers collect after threshing
  4. 8. : First step in the scientific method
  5. 9. : Tap water with dirt is an example
  6. 11. : Method where we beat crops to get grains
Down
  1. 1. : Not evenly mixed, like oil and water
  2. 2. : Formed when two substances are combined
  3. 3. : Method where wind helps separate
  4. 6. : Method sed to separate sand from stones
  5. 7. : An example of an impurity in water
  6. 10. : Gold is an example of this