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:
- On a hot day, place a portable fan on a table. Use a thermometer to record the temperature in the room.
- 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.
- 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?
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Reprinted with the permission of the NEED Project. © 2008 National Energy Education Development Project - All Rights Reserved.
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