Science Project:

Cooling Fan

3.5 based on 19 ratings

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

Portable Fan


  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?

Disclaimer and Safety Precautions provides the Science Fair Project Ideas for informational purposes only. does not make any guarantee or representation regarding the Science Fair Project Ideas and is not responsible or liable for any loss or damage, directly or indirectly, caused by your use of such information. By accessing the Science Fair Project Ideas, you waive and renounce any claims against that arise thereof. In addition, your access to's website and Science Fair Project Ideas is covered by's Privacy Policy and site Terms of Use, which include limitations on's liability.

Warning is hereby given that not all Project Ideas are appropriate for all individuals or in all circumstances. Implementation of any Science Project Idea should be undertaken only in appropriate settings and with appropriate parental or other supervision. Reading and following the safety precautions of all materials used in a project is the sole responsibility of each individual. For further information, consult your state's handbook of Science Safety.

How likely are you to recommend to your friends and colleagues?

Not at all likely
Extremely likely