Highlights science activities that focus on rivers. Describes how students can create model rivers in small pans and suggests activities to use with children when visiting rivers. Also annotates four children's books that have rivers as a major theme or plot component. (MDM)

Describes a science unit used in a fourth-grade class to teach students about Bernoulli's law of flight, the similarity of tetrahedrons to birds, and the construction of tetrahedron kites. Also includes thought-provoking math questions for students. (MDM)