On Thursday, the 4^th graders did a science experiment in Science class. They observed the changes in volume after applying heat to metals.

How do you think it turned out? The steel ball that just passed through a minute ago, was not able to pass through the hole. Even though the students knew how the results would turn out, the were still interested in the mysterious nature of temperature. Though students see these experiments on the internet, there is nothing better than to experience things first hand.