With a partner, youngsters measure their pulse and breathing rates, both at rest and after running in place for a minute. While this activity is not novel, the lesson plan includes a large-scale classroom graphing activity and other...

Do you remember a situation when you heart pounded, your breath rate shot up, and your palms got cold and clammy? Fear does that to us. Here's a science project based on roller coaster rides to see if heart rate is an accurate...