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: Place a lid over the cans to reduce the [[Thermal Energy Store|thermal energy]] lost to the [[air]] by [[evaporation]].
: Complete the experiments with different [[Thermal Insulator|insulators]] simultaneously so that a change in the [[temperature]] of the [[laboratory]] does not affect the [[results]].
{| class="wikitable"
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|[[File:RequiredPracticalThermalInsulation2.png|center|600px]]
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| style="height:20px; width:200px; text-align:center;" |A [[diagram]] including [[apparatus]] used improve the [[accuracy]] of an [[experiment]] to compare the effectiveness of different [[Thermal Insulator|thermal insulators]].
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===Improving [[Precision]]===
: Use a [[thermometer]] with a higher [[resolution]].
: Use a [[Data Logger|data logger]] rather than a [[thermometer]].