Xander

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Across
  1. 3. is the outer mantle of the solid earth
  2. 4. where life operates
  3. 6. base tastes ?
  4. 9. a widely accepted hypothesis that stands the test of time theories are often tested and usually not rejected
  5. 11. what form of energy is the energy of radioactive waves
  6. 13. What form of energy is the energy in the nucleus of an atom?
  7. 14. Acids and bases are important can do their things because most enzymes can do their job only at a certain level of?
  8. 15. what energy is a stored energy
  9. 18. it has a low concentration of hydrorium ions making it essentially neutral
  10. 21. the study of energy
  11. 23. the study of the interactions between life and its physical environment
  12. 26. what form of energy puts something in motion
  13. 28. unit of electricity
  14. 29. These reactions build up bigger molecules from smaller ones
  15. 30. a solution with a ph lower than 7
Down
  1. 1. what form of energy is stored in molecules and chemical
  2. 2. acid tastes ?
  3. 5. what form of energy is the result of flow of electric charge
  4. 7. a substance that forms as a result of a chemical reaction
  5. 8. unit of power
  6. 10. The human body is about 70% of?
  7. 12. little packets of energy
  8. 16. It is the energy that comes from the temperature of the heated substance is called
  9. 17. what reaction build up bigger molecules form smaller ones
  10. 19. is a pure substance
  11. 20. The energy needed to start a chemical reaction is called
  12. 22. unit of heat energy
  13. 24. a substance that consists of two or more elements
  14. 25. what energy is passessed due to motion
  15. 27. The sum of all the biochemical reactions in an organism