Heat Transfer
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Review-Think, Pair, Share
• In you r science jou rnal, d escribe heat.
Heat
is...
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Heat Transfer-Opening
Activity
• What happened to the bu tter?
• What other m aterials w ou ld show a
change in the bu tter?
http://www.teachertube.com/viewVideo.php?video_id=186099
What happened?
• H eat w as transferred from one object to
another (w arm w ater, m etal, m elted
bu tter).
• What are som e other w ays that you can
experience heat transfer?
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Hot to cold
• H eat m oves from the hotter object to
the cooler object.
• The w arm th from the w ater m oved to
the knife then to the bu tter.
• What happens w hen you tou ch
som ething hot? What happened ?
Examples
http://thekillerj.files.wordpress.com/2010/04/hot-stove.jpg
• Pu tting you r feet on a cold floor
• Sitting on a leather seat in the car
• Tou ching a m etal spoon in a p ot of boiling w ater
• Bu rning you r tongu e w hen you r food is too hot.
3 Types of heat transfer
• 1. Cond u ction-transfer of heat from one object to
another throu gh contact
• 2. Convection-transfer of heat throu gh liqu id or
gas
• 3. Rad iation-transfer of heat throu gh
electrom agnetic w aves
http://ocw.usu.edu/Forest__Range__and_Wildlife_Sciences/
Wildland_Fire_Management_and_Planning/heatTransferUnit
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