Envir Sci Ch 4 Crossword

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Across
  1. 2. energy matter has because of position
  2. 3. two or more atoms that are chemically bonded
  3. 7. a deceptive practice that has the appearance of science
  4. 9. reaction where energy is stored
  5. 10. variable combinations of atoms or molecules
  6. 13. energy that cannot be used to do useful work
  7. 14. atoms bonded to other atoms
  8. 15. reaction where energy is released
  9. 16. anything that takes up space and has mass
  10. 18. fundamental subunits of matter
  11. 21. burning of fuel to obtain energy
Down
  1. 1. an educated guess
  2. 2. process where plants convert CO2 and H2O into sugar and O2
  3. 4. energy contained by moving objects
  4. 5. observing something with any of your 5 senses
  5. 6. a process used to solve problems or develop an understanding of nature
  6. 8. a 5 step way of gaining infromation by forming possible solutions to questions.
  7. 11. ability to do work
  8. 12. uses O2 to break down larger molecules and give off CO2 and energy
  9. 17. proteins that reduce activation energy
  10. 19. ph >7
  11. 20. ph <7