Topics 1-3 Word Cross

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Across
  1. 4. regulates metabolism forms compounds that release energy
  2. 6. recommendations for a healthy lifestyle (two words)
  3. 9. a substance that absorbs oxides
  4. 10. mineral requirement that is 100mg or more a day
  5. 13. a process where a acid compounds are washed out of the air by rain or snow
  6. 16. a scale that measures the acidity or alkalinity of a substance
  7. 18. a chemical that's pH level is less than 7
  8. 19. the pH level of 4.2
  9. 20. a molecule that helps enzymes function in the body
Down
  1. 1. crutial part of blood cells that regulate oxygen transport
  2. 2. one part per billion
  3. 3. a chemils that produces the basic substances with the pH value more than 7
  4. 5. part of a plant that is suited for extracting minerals
  5. 7. medicine used to remove the typhus threat in World War II
  6. 8. process whereby chemicals accumulate in the tissues of organisms
  7. 11. a mixture of plant compounds used as a chemical indicator
  8. 12. in muscle contraction; forms bones and teeth
  9. 14. chemicals that reduce the amount of damage or disease to crops
  10. 15. a chemical in food, used for energy and growth
  11. 17. an organic nutrient that does not dissolve in water