Insulation Investigation

"We want to find out which materials have the best insulation properties. Which insulation keeps the ice cold or frozen for the longest amount of time." In Australia, the first ice specifically for cooling food was made in 1851. Soon people bought big blocks of ice and put them in ‘ice chests’. Gradually “icemen” began to take ice packed in hessian bags and sawdust around the city streets, delivering ice once or twice a week. Today most homes have a refrigerator. "Bubble wrap was a good insulator because it has bubbles of air trapped between the plastic. The polar fleece was also a good insulator because its texture also traps air between the bubbles. I know ice in water melts quicker and that’s why polar fleece was slightly better, it absorbs water."