How Do Refrigerators Work? (Science in the Real World) (repost)

Nearly every home has a refrigerator to keep foods tasty and safe to eat. But how does this handy kitchen appliance keep foods cool? "How Do Refrigerators Work?" explains the science behind the workings of a refrigerator, its history in the household, and how energy and pressure are used to keep foods cool. This science guide is colorfully illustrated to capture young readers' attention.