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I'm Freezing!

“Don't forget to put on a warm coat!”
 
“Where's my warm hat?”
 
“I need to buy some warm gloves.”
 
Are clothes really warm? Do they generate heat? Try this activity and find out for yourself.
 
Materials:
 
  • Two thermometers
  • A pair of gloves
  • Your hand
 
Procedure:
 
  1. Put one thermometer on the table. Put the other thermometer in one of the gloves.
  2. Wait 5 minutes and record the temperature of each thermometer. Was the glove warmer than the temperature of the table?
  3. Put on the other glove. Carefully slip the table thermometer inside the glove you are wearing.
  4. Wait 5 minutes and record the temperature inside the glove you are wearing. Is it warmer than the empty glove? How did your hand being in the glove make a difference?
 
You probably noticed that the temperature inside the empty glove was about the same as the temperature in the room. Winter clothes don't make heat. They keep you warm by trapping the heat your body makes next to you.
 
Think of other heat questions you can test. Here are a few to get you started:
  • Do ice cubes give off cold?
  • Is the temperature of hot sauce warmer than ketchup?
  • Is water that has been boiling three minutes hotter than water that has just begun to boil? (Be sure to test this with an adult. Boiling water can be very dangerous.)
 
 
EarthMoonImage
LivingOrNotLivingImage
ForceMotionImage
GravityImage
HeatAndEnergyImage

Download the plug-ins: Get Adobe Acrobat Reader, and Get Quicktime Player. (The QuickTime plug-in is needed to play sounds and movies correctly.)

Want to share photos of you or your friends doing this activity? Send it in an e-mail with the following information:

  1. The title of the activity
  2. The URL (Internet address)
  3. Your name.

Remember that no pictures can be used that show student faces or student names on it. 

Teachers should view the Teacher Site Map to relate Sci-ber text and the USOE 3rd grade science core.


Updated October 24, 2008 by: Glen Westbroek

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