ScienceThe Human BodyAges 9–11
Circulation & Breathing Together
Understand how the circulatory and respiratory systems work together: the lungs oxygenate the blood, the heart pumps it around the body, cells use the oxygen and produce carbon dioxide waste, and the blood carries the waste back to the lungs to be breathed out
Learning resources
Reviewed external links that reinforce this concept. They do not replace Gakuva’s teaching approach.
No reviewed resources for this concept yet.
The teaching approach above still stands. Curated practice links will appear here as the shelf fills.
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This concept
Circulation & Breathing TogetherConceptual concept
Check understanding
- Describe the cycle: lungs add oxygen to blood → heart pumps oxygenated blood to body → cells use oxygen → blood returns CO₂ to lungs
- Explain why heart rate and breathing rate increase during exercise (muscles need more oxygen)
- Measure their own resting and post-exercise heart rate and explain the difference
“Can your child explain why their heart beats faster when they run — and how their heart and lungs are working together to deliver more oxygen to their muscles?”
Curriculum record
- Type
- Conceptual
- Subject
- Science
- Domain
- The Human Body
- Age range
- Ages 9–11