PT3 Science Puzzle 1

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Across
  1. 3. reaction that releases heat
  2. 5. changes sound vibration to nerve impulse
  3. 6. radiation used to kill cancer cells
  4. 7. controls voluntary actions
  5. 8. carries water and minerals from roots to the leaves
  6. 9. substance found in cigarettes that causes addiction
  7. 11. substance that prevents the trachea from collapsing
  8. 12. enzymes that breakdown starch to maltose
  9. 14. respiratory system of an insect
  10. 16. rabbit has this type of vision
  11. 19. Process where plant make food
  12. 20. class of food needed for cell growth
  13. 21. carries glucose from the leaves to all parts of the plant
  14. 23. example of a unicellular organism
  15. 24. the term used to describe cutting of the fallopian tube to prevent fertilization
  16. 26. blood vessel that carries oxygenated blood from the heart to all parts of the body
  17. 27. digestion of protein starts here
  18. 28. the only vein that carries oxygenated blood
  19. 29. reaction that absorbs heat
Down
  1. 1. structure found in the lungs that are responsible for the exchange of respiratory gases
  2. 2. Instrument used to observe and collect information on bodies and phenomena in outer space
  3. 4. spacecraft used to collect data from outer space and send them back to Earth
  4. 5. smallest blood vessel in the human body
  5. 10. generate energy for the cells during respiration
  6. 13. the coldest part on the sun
  7. 14. structure that protects the seed
  8. 15. substance that combines with oxygen found in red blood cell
  9. 17. controls body balance
  10. 18. structure that helps to increase the surface area of the small intestine
  11. 22. Substance that absorbs Sunlight
  12. 25. the process where plant loses excess water and also helps to cool down the plant
  13. 27. disease caused due to lack of vitamin C