Physical Science The Year In Review!

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Across
  1. 3. chlorine and iodine are examples of these
  2. 4. horizontal rows on the PT
  3. 5. left side of a chemial equation
  4. 6. an atom that has gained or lost electrons & has a charge
  5. 8. the m in f = ma
  6. 11. changes with location
  7. 12. atomic number 10
  8. 13. guy with the laws of motion
  9. 17. accelerates objects at 9.8m/s/s
  10. 19. combustion cannot happen without this gas
  11. 20. type of reaction with only one reactant
  12. 21. atomic number of beryllium
  13. 22. very dense metal used to protect from x-rays
  14. 23. positive subatomic particle
  15. 25. for every action there is an equal and opposite...
Down
  1. 1. for carbon, this is 12
  2. 2. metric unit of temperature
  3. 4. right side of a chemical equation
  4. 7. force that resists motion
  5. 9. group 1 on the PT
  6. 10. mass per unit volume
  7. 14. most simple atom
  8. 15. carbon-14 is a radioactive one of these
  9. 16. most elements on the PT are this
  10. 18. most abundant gas in our atmosphere
  11. 24. most common compound on Earth