water

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Across
  1. 4. Pollution that can be traced
  2. 5. Organism which hints at water conditions and is first to respond to changes
  3. 7. Attraction among molecules that are not alike
  4. 8. Nitrogen based compound often used in fertilizer
Down
  1. 1. The natural process of water moving through the hydrosphere
  2. 2. Collection of data from a distance
  3. 3. Conduction in which opposite ends of a molecules have slightly opposite charges
  4. 6. Mass per unit of volume of a material