Learn how blood travels through the heart with this fun coloring page inspired by Episode 25 of What's Happening Inside Me?! Kids will color the two circulation tracks—one for oxygen-rich blood and one for oxygen-poor blood—while discovering how the heart pumps blood to the body and lungs. 
This hands-on activity reinforces key concepts from the episode, helping kids visualize the heart’s pathways and understand circulation in a fun, interactive way—perfect for curious kids, classrooms, and family learning time!