1.   Identify the precision unit of the graduated cylinder below.
   
    A. 2 mL B. 1 mL
    C. 5 mL D. 0.5 mL
    Hint

  2.   Identify the precision unit of the scale below.
   
    A. 1 oz B. 0.3 oz
    C. 0.5 oz D. 0.25 oz
    Hint

  3.   Identify the precision unit of the thermometer below.
   
    A. 1°F B. 5°F
    C. 10°F D. 0.5°F
    Hint

  4.   Identify the precision unit of the clock below.
   
    A. 1 h B. 1 min
    C. 3 h D. 30 min
    Hint

  5.   The temperature at the core of the sun is estimated to be over 15,000,000 degrees Celsius. How many significant digits are in this measurement?
    A. 6 B. 15
    C. 8 D. 2
    Hint



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