Can't Judge A Powder

7 Questions | Total Attempts: 83

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Questions and Answers
  • 1. 
     How long is this event?
    • A. 

      25 mins

    • B. 

      60 mins

    • C. 

      50 mins

    • D. 

      40 mins

  • 2. 
    What must we provide for this event?
    • A. 

      Thermometer, beakers, pencil

    • B. 

      PH paper, hand lens, volt tester

    • C. 

      Powder, observation sheet, hand lens

    • D. 

      Hot plate, pH paper, thermometer

  • 3. 
    Do we write do observations or inferences?
    • A. 

      Observations

    • B. 

      Inferences

    • C. 

      I dont know.

  • 4. 
    What is the proper use of pH paper?
    • A. 

      Drop the paper in the liquid.

    • B. 

      Drop the paper halfway into the liquid.

    • C. 

      Pour the liquid onto the paper.

    • D. 

      Use the end of a stirring rod to spot the paper.

  • 5. 
    What does solubility mean?
    • A. 

      Ability to dissolve.

    • B. 

      Able to float.

    • C. 

      Can absorb water.

  • 6. 
    What is the pH of table salt?
    • A. 

      7-8

    • B. 

      6

    • C. 

      5

    • D. 

      7

  • 7. 
    Are judges going to collect our samples?
    • A. 

      No

    • B. 

      Yes