Crossword

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Across
  1. 4. a state of matter that retains its shape
  2. 6. is deals with matter and energy
  3. 7. a matter that has no fixed shape
  4. 8. a form of energy
  5. 9. a substance that flows freely
Down
  1. 1. plants using sunlight to make oxygen
  2. 2. a study of living organisms
  3. 3. a fundamental property
  4. 5. to disperse or to disappear
  5. 6. basic unit of light