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Thump-Thump! How Does Your Heart Pump Blood? | Kids’ Science Song

◷ 2:21

What makes your pulse speed up after a few easy jumps? This upbeat science song shows how the heart squeezes, relaxes, and pumps blood carrying oxygen picked up in the lungs. Children can explore their heartbeat, gently find a wrist pulse with two fingers, and notice it slow again while resting.

Concepts explained

Concept glossary ↗

Original explanations based on the cited sources.

Blood circulation

In humans, the heart pumps blood through vessels to the lungs and the rest of the body. Blood carries oxygen, nutrients and waste products, among other substances.

Sources

Oxygen

Oxygen is a chemical element with the symbol O. In air it mainly occurs as O₂ gas, which our cells use in cellular respiration.

Sources

Text from the recording’s subtitles.

Song lyrics
O que faz tum-tum se eu fico sem mexer? Ponho a mão no meio do meu peito Um pouco à esquerda, sinto tum-tum Sob a palma, volta uma batida Meu coração é um músculo em ação Com dois dedos, toco de leve o pulso Cada batida cria a onda do pulso Tum-tum, meu coração bombeia sangue Aperta, relaxa, volta a encher Nos pulmões, o sangue recebe oxigênio E o leva dos pés até a cabeça Dou alguns pulinhos bem de leve Minhas bochechas ficam cor-de-rosa Confiro o peito e o pulso outra vez Agora o tum-tum vem mais depressa Meus músculos precisam de mais oxigênio Tum-tum, meu coração bombeia sangue Aperta, relaxa, volta a encher Nos pulmões, o sangue recebe oxigênio E o leva dos pés até a cabeça No sofá descanso sem me mexer Meu pulso fica lento pouco a pouco A batida volta a ficar calma Tum-tum, meu coração bombeia sangue Aperta, relaxa, volta a encher Nos pulmões, o sangue recebe oxigênio E o leva dos pés até a cabeça Em repouso, meu pulso já está mais lento Meu coração trabalha como uma bomba
Language version lyrics
What taps while I am sitting still? My hand rests near the middle of my chest Just left of center, I feel thump-thump A steady beat returns beneath my palm My heart's a muscle working all the time Two fingers gently rest upon my wrist Each heartbeat makes a wave I feel as my pulse Thump-thump, my heart is pumping blood It squeezes, relaxes, fills again Blood picks up oxygen in my lungs And carries it from toes up to my head I do a few light, easy jumps A rosy glow comes to my cheeks I check my chest and wrist once more Now every thump arrives a little faster Moving muscles need more oxygen Thump-thump, my heart is pumping blood It squeezes, relaxes, fills again Blood picks up oxygen in my lungs And carries it from toes up to my head I rest upon the couch and breathe My pulse slows down a bit at a time The gentle rhythm settles down again Thump-thump, my heart is pumping blood It squeezes, relaxes, fills again Blood picks up oxygen in my lungs And carries it from toes up to my head At rest, my pulse is slow again My heart keeps working like a steady pump
Open on YouTube ↗
2:25
Audio language: EnglishSongs

Thump-Thump! How Does Your Heart Pump Blood? | Kids’ Science Song

What makes your pulse speed up after a few easy jumps? This upbeat science song shows how the heart squeezes, relaxes, and pumps blood carrying oxygen picked up in the lungs. Children can explore their heartbeat, gently find a wrist pulse with two fingers, and notice it slow again while resting.

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