Chapter 1 Vocab

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Across
  1. 2. How close multiple measurements are to each other
  2. 4. type of mixture that has a uniform composition
  3. 5. How close a measurement is to the true or accepted value
  4. 8. type of mixture that does not have a uniform composition
  5. 12. descritive measurements
  6. 13. the amount of matter in an object (How much “stuff”)
  7. 14. a type of observation
  8. 16. Anything that can do work or produce heat.
  9. 19. Properties that can be measured or observed without changing the identity (or composition) of a substance.
  10. 21. The study of matter and the changes it undergoes.
  11. 22. observation made with a measuring instrument and includes both a number and a unit
Down
  1. 1. In any chemical or physical change, matter cannot be created or destroyed.
  2. 3. formed when elements chemically combine: H2O, CO2, NO2
  3. 6. One or more substances react to form new substances with different chemical and physical properties
  4. 7. Properties that indicate how a substance reacts with other substances
  5. 9. Have uniform and definite composition
  6. 10. Anything that has mass and volume (EVERYTHING!)
  7. 11. Two or more pure substances physically mixed together.
  8. 15. Changes in appearance without changing composition
  9. 17. A method used to convert units.
  10. 18. The force of gravity acting on an object’s mass.
  11. 20. found on the Periodic Table (approx. 118)