week one (Diana Maldonado)

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Across
  1. 3. zeros that come before a number
  2. 5. several measurements are close together
  3. 7. have no charge
  4. 8. depends on another variable
  5. 12. a way for us to easily convert between units using conversion factors
  6. 13. zeros at the end of numbers
  7. 15. close to the right answer
  8. 16. the space an object occupies
  9. 17. a change the involves the production of one or more new substances
  10. 20. have a negative charge
  11. 21. amount of matter in a substance
Down
  1. 1. certain numbers plus one estimated digit
  2. 2. have a positive charge
  3. 4. observation that deals with qualities
  4. 6. mass/volume
  5. 9. a change in matter in matter that does not change the identity of the substance
  6. 10. doesn't depend on another variable to change
  7. 11. observation that deals with quantities
  8. 14. something that can change
  9. 17. zeros stuck between numbers
  10. 18. internationally agreed upon standard of measurement based on the meter and the kilogram
  11. 19. a variable held constant to determine if an effect occurred