Download Add to Favorites Add to Folder creative writing children's book activities classroom tools language arts and writing vocabulary Create new folderCREATE NEW FOLDER Share Explore how blood flows from the heart to the lungs and back again using this resource. Students' learning will be expanded when this printable is used as a reference for an in-class paper or group activity. Grade: 5 | 6 | 7 Subjects: Science Human Body and Anatomy Nutrition + show tags TYPE: Worksheets Teaching Strategies: Educational Technology Internet Guide for Teachers & Students