From Rags to Riches http://www.quia.com/rr/30450.html In this beginner level activity, you have to answer 16 questions about the circulatory system. Each question will have a choice of four different answers. In order to move ahead in the game you must choose the correct answer. Good Luck and Have Fun!!
Circulatory System Quiz http://www.softschools.com/quizzes/science/circulatory_system/quiz758.html In this for-all-ages quiz, you will be asked 10 questions involving topics featured on this website.
Heart & Circulatory System http://kidshealth.org/kid/quizzes/CSquiz.html#cat20913 In this quiz for kids, you will be asked 10 questions about the heart & circulatory system.
Interactive Human http://interactivehuman.blogspot.com/2008/10/heart-heart-information-cardiovascular.html This interactive human body helps teach all ages about the circulatory system.
Circulatory System Quiz http://hes.ucfsd.org/gclaypo/javaquiz/circsysquiz.html This is a 10 question quiz about the circulatory system that targets at the high school age level.