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Method:Loading...
1.fill the box with ice 2.wait for a few minutes,then check the ice with a thermometer
3.put a material in side the box
4. repeat the same method with different materials
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Fair testing:Loading...
Dependant variable: We are going to measure the temperature inside the tub
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Independent variable: We will change the material
Controlled variable:we will keep the same thermometer,the same amount of ice cube and the same temperature in the room.