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The Human Heart for Kids
Discover the human heart — the muscular organ that pumps blood all around your body. Learn what an organ is, that the heart has four chambers, and how it powers your circulatory system.
How it works
- Press play to start the video.
- Videos 5 minutes or longer pause once or twice for a quick check. Get it right and you're on your way. If not, you'll see a friendly explanation and the video simply keeps going. Short videos skip the checks.
- At the end there's a 3-question test. Score 60% or more to complete the lesson, and 80% or more to master it. You can always watch again and try for a higher score.