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.
Original explanations based on the cited sources.
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 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.
2:55Ola and her dog discover why it feels cooler beneath a tree and how trees support people, animals, and the neighborhood. This cheerful children’s song also introduces leaves, oxygen, roots, and rain while showing that a sapling needs the right place, regular care, and time to grow.
2:19Follow Ola’s cheese-sandwich bite on an imaginary camera trip into her stomach. See how muscle movements mix the food, while gastric juice and enzymes help break it down before small portions move on to the small intestine.
3:17How did T. rex move, find food, and stay balanced? This adventurous children’s song imagines a plausible day in western North America about 68–66 million years ago, near the end of the Cretaceous. Young listeners discover how two strong legs, a raised tail, a keen sense of smell, and powerful jaws helped this meat-eater.
No content matches this choice yet. Try another language or topic.
