Use the links for the famous scientists related to the heart as a starting point and design an information poster about the person, their work and the impact it had on their scientific field.
Karl Landsteiner: https://kids.kiddle.co/Karl_Landsteiner
Cristiaan Bernard: http://encyclopedia.kids.net.au/page/ch/Christiaan_Barnard
How did last week's experiment on your pulse rate go? Ask your parents for permission, and then see if drinking coffee or a caffeinated drink (like cola) affects your pulse rate.