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Static Electricity,The New Flair: Blonde, Redhead or Brunette? (page 2)

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Author: Muriel Gerhard

Terms, Concepts and Questions to Start Background Research

  • What is a control?  A control is the variable that is not changed in the experiment.
  • What purpose does a control serve? It is used to make comparisons as to what changed or possibly caused the change.
  • What are variables?  Variables are factors that can be changed in an experiment.
  • What is an independent variable? The independent variable is the one that is changed in the experiment.
  • What is a dependent variable? The dependent variable is the one that changes as a result of the change in the independent variable.

Charting and Graphing Data

In each section of the experiment, use charts to display the obtained data such the following sample:

Amount of Time Balloon Stuck to Wall in Seconds Subjects    

Blonde=BL    Brunette=BR  Redhead =Red          

 

Subjects

Trial#1

Trial#2

Trial#3

Trial#4

Average Time

BL#1

 

 

 

 

 

BL#2

 

 

 

 

 

BL#3

 

 

 

 

 

BL#4

 

 

 

 

 

BR#1

 

 

 

 

 

BR#2

 

 

 

 

 

BR#3

 

 

 

 

 

BR#4

 

 

 

 

 

Red#1

 

 

 

 

 

Red#2

 

 

 

 

 

Red#3

 

 

 

 

 

Red#4

 

 

 

 

 

Experimental Procedure

  1. State the problem you are going to investigate in this science fair project.
  2. Select your subject s, at least four blondes, four redheads and four brunettes in your class. Keep the gender the same, all boys or all girls.  The larger the number, the more reliable and valid will be the results.
  3. Create the instruction sheets and the data sheets you will use to record your observations.
  4. Gather all your materials.
  5. Start with one subject at a time. Take the blown up balloon, the comb and the subject into a dark room.   Have each subject charge the comb on her or his hair and then touch the charged comb to the balloon.
  6. Stick the balloon to the wall.
  7. Time how long the balloon sticks to the wall.
  8. Have the subject repeat the procedure twice again and record the average of the results.
  9. Repeat steps 4 through 7 for each of the subjects and record the data and the averaged data.
  10. Analyze your results and formulate your conclusion.
  11. Prepare your report and include all of the following: a clear statement of the problem, your hypothesis and the rationale for your prediction? Which hair color did you predict would generate the most static and why did you think so. List the materials used. Include any safety precautions taken. Describe the procedures used. Include all the data that were gathered. Include all charts and or graphs. State your conclusions.   For dramatic value, you may include photos of the materials used or of you in the process of conducting this investigation. Include a bibliography of sources you used. You may wish to assess what you did and describe what you would do differently if you were to do this project again.

Bibliography

  1. www.sciencebuddies.org/science-fair-projects/
  2. www.sciencemadesimple.com/static.html 
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