First, I partially inflated a balloon—about the size of an orange—and carefully stretched it over the mouth of a 1.5-liter plastic bottle, ensuring that it was sealed tightly. Next, I recorded the room temperature and noted the approximate size of the balloon. After that, I placed the bottle in a basin of ice water. I left it for about 2 to 3 minutes and observed any changes in the balloon’s volume. Using a thermometer, I recorded the temperature of the cold bath and estimated the new balloon volume. Then, I removed the bottle and allowed it to return to room temperature, recording any changes in the balloon’s size. For the next part, I placed the same bottle in a basin of hot water with a temperature of around 70 to 80 degrees Celsius. After a few minutes, I observed that the balloon expanded. Again, I recorded the temperature and the new volume of the balloon. To ensure accuracy, I repeated the process for three trials, recording all temperature readings and balloon volumes in a data table.