This Physical Education and Health activity can be used in the P.E. setting as well as in the Health setting. It has been used with students at the Second through Fifth grade level and can easily be modified for older students. Students work on locomotor skills and manipulative skills (striking) along with learning Circulatory System Concepts. Circulatory Red Vs. Blue Pool Sharks also works on team building and communication skills. Students will learn about arteries, veins, deoxygenated blood, oxygenated blood and cholesterol. This activity was created by Heather Isler.