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10 February, 22:45

Which of the following is an example of an experimental scientific investigation

A noting the PH of a solution on a digital meter

B recording the sound of glass breaking

C placing test tubes in an ice bath for 15 min

D noting the color of a solution when heated

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Answers (2)
  1. 10 February, 23:26
    0
    The correct answer is option D.

    Noting the color of a solution when heated is an example of an experimental scientific investigation.

    Option A, noting the PH of a solution on a digital meter is an example of experimental data recording.

    Similarly, option B recording the sound of glass breaking, is an example of experimental record keeping.

    Option C, placing test tubes in an ice bath for 15 min is an example of experimental procedure.

    But option D, noting the color of a solution when heated is an example of experimental scientific investigation. Because the scientist is make an acute observation of the color change whenever the solution is heated.
  2. 11 February, 02:29
    0
    Scientific investigation is the process in which scientist solve the problems by using different systematic approach. It can be initiated in different ways.

    Experimental Scientific investigation: The investigation in which scientist answer the question on the basis of experimental results. Experimental investigation contains both dependent and independent variables, and only one variable is tested at a time is possible. This process makes uses of collecting observation and identifying the process in physical word.

    Noting the colour of a solution when heated is the experimental scientific investigation

    Therefore, other given options are part of scientific observation whereas Noting the colour of a solution when heated explains the experimental scientific investigation.
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