This 6-page Circulatory System Activity Set includes four fun, educational activities to help children understand and learn about the human circulatory system. Here's what's inside: Labeled diagram of the human circulatory system Fill-in-the-blank circulatory system diagram Labeled diagram of the human circulatory system Fill-in-the-blank heart valve system diagram Circular system matching activity Heartbeat lab activity PLEASE NOTE: This is a digital product. Nothing will be shipped to you. Immediately after purchase, you will receive a link to download, save and/or print your activity set.