As a way to teach science as an ever-changing body of knowledge, I have the students do a science timeline along side of a personal timeline. They thoroughly enjoy the research we do on the Internet and in the library. They get experience doing searches and using almanacs and other reference books and magazines. The discoveries and changes that have occurred during their lifetimes fascinate them. They are thrilled to share their personal timelines with others because they have the opportunity to show pictures of themselves as they have grown and changed. We hang our science and personal timelines in the hallway and share our findings.