What is the dependent variable in the thermal insulation experiment?
Temperature change of water
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When measuring the effectiveness of thermal insulation, what are the control variables?
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What data needs to be recorded during the thermal insulation experiment?
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How is the effectiveness of insulating materials analysed?
By comparing the change in temperature for each beaker.
The lower the temperature change, the more effective the insulation is.
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Why are control variables needed?
To ensure a fair test so only the independent variable affects the results
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