7A Crossword

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Across
  1. 2. Organ that helps you to breathe.
  2. 4. A scientific idea about why something happens, which can be tested with experiments.
  3. 6. More scientific name for 'windpipe'
  4. 9. Organ that controls what our body does.
  5. 10. Nerve Cell.
  6. 11. Getting rid of waste materials from the body.
  7. 13. Green discs that contain chlorophyll. Found in plant cells.
  8. 14. Another word for food.
Down
  1. 1. A large part of a plant or animal that does a very important job. It is made from different tissues.
  2. 2. Organ used to make and destroy substances in our bodies.
  3. 3. Process that plants use to make their own food.It needs light to work.
  4. 5. Plant organ that used to make food by photosynthesis.
  5. 7. Job.
  6. 8. When a small piece of tissue is taken from the body to check for certain diseases or problems.
  7. 12. Plant organ used to take water out of the soil.