Chemistry Ch. 3

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Across
  1. 2. how exactly a measurement is made
  2. 5. unit that comes from a combination of the base units
  3. 7. a mathematical process to change units
  4. 8. digits that are known for certain, plus one estimated digit
  5. 10. how close the measured value is to the actual value
  6. 11. SI unit for time
  7. 13. any difference between a measured value and the actual value of a dimension
  8. 14. form we use to do conversions in chemistry class
  9. 15. SI unit for temperature
Down
  1. 1. instrument that measures and displays how fast you are going (see p. 54 of your text)
  2. 3. SI unit for mass
  3. 4. place where the standard kilogram and meter are stored
  4. 6. comparing an unknown quantity to a standard unit
  5. 9. one billion bytes
  6. 12. one millionth of a meter