Lyrical Life Science, Volume 3: The Human Body contains lyrics that were written by a biology teacher and his wife who are enthusiastically involved in 4-H with their own children. A Ph.D. science advisor and an M.D. also helped with this part of the series. This volume studies the 11 different human systems--skeletal, muscular, nervous, digestive, circulatory, respiratory, etc. Your children will learn about the bloodstream to the tune of 'Red River Valley,' about the immune system to 'La Cucaracha,' and about the reproductive system to an old Irish waltz. Highly recommended by Karen Andreola. Recommended for middle school age children.