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Cooling Fan

Source: The Need Project
Topics: Preteen Years (9-13), Great Science Fair Project Ideas

Grade Levels:
4-6

Question:
Does a fan really cool the air?

Possible Hypotheses:
A fan does/does not cool the air.

Materials:
Portable Fan
Thermometer

Procedure:

  1. On a hot day, place a portable fan on a table. Use a thermometer to record the temperature in the room.
  2. Turn the fan on and hold the thermometer three feet from it so that theair blows on the thermometer. After one minute, record the temperature.
  3. Hold the thermometer two feet from the fan, then one foot. Record the temperature.

Analysis and Conclusion:
Does a fan actually cool the air? Why does the air feel cooler?

Reprinted with the permission of the NEED Project. © 2008 National Energy Education Development Project - All Rights Reserved.

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11 comments

Comments from readers

  1. Apr 23, 2008
    carolina gonzalez says:
    How many times do you have to do the procedures
  2. Sep 27, 2008
    brooke fick says:
    does a fan really cool the air???and why and how??????????????????????????????????????????????????????????????????????????????????????????????
  3. Sep 27, 2008
    rebecca lovens says:
    what is the question for the hypotheses?
  4. Oct 1, 2008
    Victor says:
    This project is really fun and I got an A++++++
  5. Nov 8, 2008
    olivia says:
    !@#$%^&*()_+!@#$%^&*()_+!@#$%^&*()_+!@#$%^&*()_+!@#$%^&*()_+!@#$%^&*()_+!@#$%^&*()_+
  6. Nov 8, 2008
    go go says:
    $$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$
  7. Nov 9, 2008
    hot trini says:
    HOW LONG DIS PROJECT GONE TAKE ??????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????
  8. Nov 10, 2008
    lone star says:
    right on dudes
  9. Nov 12, 2008
    grace proctor says:
    is this  a good project?
  10. Nov 16, 2008
    brittany says:
    cool dude!!!!!!!!!!
  11. Nov 19, 2008
    Anonymous says:
    hi yo what up good job

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