1.4 Matter And The Scientific Method

7 Questions | Total Attempts: 185

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Many science classes begin with the scientific method. Here we consider a systematic approach to discovery, including observation, hypothesis, experiment, conclusions, controls, and theories and laws.


Questions and Answers
  • 1. 
                A concise verbal or mathematical statement of a relationship between phenomena that is always the same under the same conditions is referred to as
    • A. 

      A hypothesis

    • B. 

      A law

    • C. 

      A theory

    • D. 

      None of the above

  • 2. 
    A unifying principle that explains a body of facts and relations is referred to as
    • A. 

      A hypothesis

    • B. 

      A law

    • C. 

      A theory

    • D. 

      None of the above

  • 3. 
    Which of the following is an example of a physical property?
    • A. 

      Corrosiveness of sulfuric acid

    • B. 

      Toxicity of cyanide

    • C. 

      Flammability of gasoline

    • D. 

      Neutralization of stomach acid with an antacid

    • E. 

      Lead becomes a liquid when heated to 601C

  • 4. 
    Which one of the following is an example of a physical property?
    • A. 

      Dynamite explodes

    • B. 

      Meat rots if it is not refrigerated

    • C. 

      Gasoline burns

    • D. 

      Ice floats on top of liquid water

    • E. 

      A silver platter tarnishes

  • 5. 
    All of the following are properties of tin.  Which one is a chemical property of tin?
    • A. 

      Tin can be hammered into a thin sheet.

    • B. 

      At –40C a sheet of tin crumbles to a gray powder.

    • C. 

      At –40C a sheet of tin crumbles to a gray powder.

    • D. 

      When a bar of tin is bent, it emits an audible “cry”.

    • E. 

      Tin erodes when added to hydrochloric acid, and a clear gas forms.

  • 6. 
    A tentative explanation for a set of observations that can be tested by further experimentation is referred to as
    • A. 

      Hypothesis

    • B. 

      A law

    • C. 

      A theory

    • D. 

      None of the above

  • 7. 
    Choose the response that includes all the items listed below that are pure substances.            1. orange juice    2. steam    3. ocean water    4. oxygen    5. vegetable soup
    • A. 

      1 only

    • B. 

      2 4

    • C. 

      1 3 4

    • D. 

      4 only