What is the relationship among the heart, circulation, and exercise? Your class members will explore first-hand how different physical exercises affect an individual's heart rate. They will begin by learning how to measure their own...

Are serving sizes for different foods always appropriate for what you need? In this hands-on activity, learners work in groups to estimate what one serving size of various foods are, and then evaluate their hypotheses by measuring...

Students practice analyzing skeletal remains for clues by using the Internet.  In this scientific investigation lesson, students research the La Belle shipwreck using the Internet and written materials, later completing a Skeletal...