5/6 Science: How we fight illnesses and diseases

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Across
  1. 4. produce tears to keep eyes clean and moist.
  2. 6. microscopic germs that can cause colds.
  3. 7. white blood cells react to invaders such as viruses and cancer cells.
  4. 8. germs that can cause diseases like pneumonia
  5. 10. a body organ that defends the bloodstream against invaders.
  6. 11. a small dose of a virus injected by needle to give the body a chance to become immune.
  7. 12. little hairs in the nose that help push out contaminated mucus.
  8. 13. what your body uses to protect and repair itself when ill or injured.
  9. 14. made by white blood cells to defend the body from viruses or bacteria.
  10. 15. become swollen when they are fighting infection.
  11. 17. Platelets cause the blood to glue together and form a scab.
  12. 18. remove harmful or excess fluids from blood, rinses the body.
Down
  1. 1. helps digest food, creates insulin which provides cells with energy.
  2. 2. slimy fluid found in the nose and throat that traps bacteria.
  3. 3. the "patch up" organism in the blood that starts healing cuts.
  4. 5. located at the back of the throat and help defend the mouth and throat.
  5. 7. part of the circulatory system that transfers fluids that have invading bacteria.
  6. 9. when the body produces antibodies to fight off viruses or bacteria.
  7. 10. kills bacteria and viruses that are in the food we eat.
  8. 16. where detoxification of harmful chemicals occurs.