WATER - Crossword

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Across
  1. 2. Simple aquatic organisms that can perform photosynthesis, often found in water bodies
  2. 6. process that forms clouds
  3. 7. A state of matter for your element
Down
  1. 1. The introduction of harmful substances or contaminants into the environment
  2. 3. Element in a water molecule
  3. 4. Associated with sadness or calmness
  4. 5. A device that uses energy to perform a specific task or function