insulation

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Slide1: 

C W I

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3 Thermometer 3 Beakers Insulation Water Cotton

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Place insulation in one can, water in the other and cotton in the last one Place the three cans in a hot water bath Record the temperature inside each can Record the temperature of the water in the hot water bath Continue recording the temperature every 30 seconds for 3 minutes

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The insulation The water The cotton Answer: The can with the water got the hottest. (B)

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The insulation The water The cotton Answer: The can that the temp changed the least was the can with the water in it. (B)

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The insulation The water The cotton Answer: Cotton is the best insulator because it slows the heat transfer.

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Cotton Insulator Water

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The experiment is demonstrating heat transfer because this experiment uses conduction. Conduction is heat transfer through a solid or liquid as a result of vibrating of loose electrons- direct contact between the two substances.

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The methods of heat transfer are listed below. Radiation Convection Conduction

heat transfer: 

heat transfer Heat transfer is occurring because the heat is going through the can through the insulators and to the thermometer.

Difference in heat transfer in the different materials. : 

Difference in heat transfer in the different materials. A good insulator is a bad conductor of heat , a bad insulator is a good conductor. Cotton is the best insulator so it is the worst conductor. Insulator is the second to the best insulator. Water is the worst insulator and usually the worst conductor, but in this case it is the best conductor.

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