Animation of a red blood cell travelling around the circulatory system.
Interactive activities on the heart and circulatory system.
PBS site about the heart – includes animation of blood flow, heart facts, links and an interactive Shockwave heart transplant operation
Animation – journey of a red blood cell.
Animations, diagrams, lessons and links on the heart and lungs
Contains information about blood, also games and quizzes. There is a “bloody bits” section with animations and information on circulation and the heart