Water

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Across
  1. 3. is needed to change ice cube to water Heat
  2. 4. …………… Counts Drop
  3. 6. water sport Diving
Down
  1. 1. allows light to pass through because it is Colourless
  2. 2. ………… and mug to save water Bucket
  3. 3. is the source of ………………… Life
  4. 5. of ocean water Salt