science crossword

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Across
  1. 3. a main component of wood
  2. 5. a compoonent in hard water which restrict cleansing ability of soap.
  3. 8. Mnemonic for rainbow
  4. 9. network through which tree's talk
  5. 11. a process in water cycle.
  6. 13. process in lightning rod
  7. 14. the net movement of water across a semipermeable membrane.
Down
  1. 1. a layer formed due to ions which restrict cleansing ability of soap.
  2. 2. a chemical reaction in which an acid and base quantitatively react together to form a salt and water as products.
  3. 4. a component of wood
  4. 6. process in which food become rotten
  5. 7. a clear fluid in canal of inner ear.
  6. 10. a process in which oxygen combines with a substance.
  7. 12. layer formed when copper get oxidize