Year 10 test revision

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Across
  1. 2. negative electrode
  2. 3. respiration in the absence of oxygen
  3. 5. negative ion made of hydrogen and oxygen that makes a solution alkaline
  4. 7. series of elements in order of how well they react with other elements
  5. 10. example of an effector, not a gland
  6. 12. atomic mass goes down by what number during alpha decay of a radioactive substance
  7. 15. changes the body make to ensure a constant internal environment
  8. 17. cells that detect a change in the environment
  9. 19. carbon rods, one positive and one negative
Down
  1. 1. site of respiration
  2. 4. neurone that is connected to a muscle or gland to bring about a change
  3. 6. change in the environment
  4. 8. released as a result of respiration
  5. 9. dissolved in water
  6. 11. acid produced during anaerobic respiration
  7. 13. forces that are equal in magnitude
  8. 14. process to extract metals more reactive than carbon(uses electrical current to split ionic compounds)
  9. 16. group number that react more violently with water
  10. 18. response that bypasses the conscious area of the brain