Can you make a homemade thermometer? Do rubber bands behave differently at different temperatures? What's needed to make your own cooler? The answers to these questions--and many more having to do with temperature--are found through experimentation in this title presented by Scientific American. Each project presents the scientific background of the concept explored and then offers clear step-by-step instructions to complete the experiment or activity. Most projects have additional questions or ideas that allow readers to expand the project, including some that are a great way to start a science fair project.