Pumping Heart ModelEasy-to-use, multi-sensory model uses a simple hand pump to demonstrate basic heart and pulmonary blood flow. Create a memorable exploration of how the heart and lungs work together for oxygen exchange. Includes clearly labeled heart chambers, main artery, veins and lungs, plus Activity Guide. Heart measures approximately 12"L x 11"W x 5"D. Grades 3+ LER 3535

• Easy-to-use, multi-sensory model
• Explore how the heart and lungs work together for oxygen exchange
• Uses a simple hand pump to demonstrate basic heart and pulmonary blood flow