What is the purpose of wrapping different insulating materials around the cup?

The purpose of wrapping different insulating materials around the cup is to find the best insulator. This type of experiment typically involves measuring how well each insulating material keeps heat from escaping the cup, thereby helping to determine which material is most effective in minimizing heat loss. By comparing the performance of various insulating materials, one can conclude which material retains heat best, demonstrating the principles of thermal insulation and heat transfer. This forms a practical investigation into properties of materials and their applications in real-world contexts, such as in building design or product packaging.