The teacher can start the discussion with students by asking this question or a question related to the contents in the animation. Have you ever thought our body is a perfect scenario for explaining how fluids behave? The idea is to show the animation in which students can see a mechanism in the human body to represent fluid behavior, as in the case of blood. The intention of this is to have students start relating everyday events, so that they get interested in the topic and want to continue exploring the guide. To do so, there is an illustration of something interesting, how our circulatory system Works, and what importance blood has in its proper functioning.