1) Which of the following are advantages of thermal insulation? a) Contributes to our family economy b) -Thermal ınsulation saves energy for our countr c) ensures efficient use energy 2) What does thermal insulation mean? a) does not conduct heat b) is to pass the light c) to transmit sound 3) Which material was not used for thermal insulation in thermos construction? a) cotton b) sponge c) Metal 4) Which material is used as thermal insulation material in windows? a) double glazing b) glass wool c) wooden 5) Which of the following are thermal insulation materials? 1-plastic foam 2- rock wool 3-glass wool a) one b) two c) three

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