This is two sets of fill-in-the-blank worksheets to help reinforce the form and function of the circulatory / cardiovascular system.
One sheet can be used for upper elementary, both can potentially be used for junior high or lower high school.
This is designed to be used as homework or as a scavenger hunt. As homework, there are QR codes found at the bottom of the page that they can scan and find the answers by searching through the different websites. As a scavenger hunt, you can print off the pages, and the giant QR codes and paste them around the room and have students get up and walk around the room as they try to find the answers.
Answer keys in two different formats are provided to make it easy to grade. Also if you do not have smart devices, a list of the websites are provided so students can search through the websites in the computer lab.