What your child will discover
Help the child understand that the heart is a muscular organ with four chambers and valves. It pumps blood to the lungs for oxygen exchange and then pumps oxygen-rich blood to the body.
Lesson 192 of 300
What Does the Heart Do?
Learn that the heart is a muscular pump that moves blood through the lungs and the rest of the body.
3–4 yearsHealth, Body & EmotionsAdult guided
Health, Body & Emotions · KnowledgeForKids.com
Listen together · adult controls the audio
The spoken lesson
"The heart is a strong muscular pump inside the chest. It has four chambers and valves that help blood move in the correct direction. Blood returning from the body enters the right side of the heart. The heart pumps it to the lungs, where it receives oxygen and releases carbon dioxide. The blood returns to the left side, and the heart pumps it through vessels to the body. Each contraction creates a heartbeat. The pulse often becomes faster during active movement and slower during rest. The heart pumps blood to the lungs and around the body." DESIGN REQUIREMENTS: Use a medically accurate heart shape and simplified directional animation. Avoid romantic-heart icons as anatomy, alarming sounds, pulse scoring, or diagnostic content.
Words to notice together
HEARTMUSCLEPUMPCHAMBERSVALVESLUNGSBLOODARTERY
Make it real
Pause, point, name what you notice, and connect the idea to something familiar in your child's day. Repetition, a calm voice, shared attention and dependable care matter more than finishing quickly.