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ScienceThe Human BodyAges 9–11

How the Lungs Work

Explain how the respiratory system works in detail: air travels through the nose/mouth, down the trachea, into bronchi and bronchioles, reaching tiny air sacs (alveoli) in the lungs where oxygen passes into the blood and carbon dioxide passes out

Lesson

Set out your lesson

“How the Lungs Work means practising the idea at the table with a simple hands-on check. We will demo once, then your child tries.”

Bring to the table

  • A simple body outline printout or drawing
  • Pencil and labels
Extra for the adult

Worked example. The brain sends signals so muscles know when to move.

Optional challenge. For How the Lungs Work, add one harder example after success.

What to notice. Keep one parent note: examples tried; results; support used. This session samples How the Lungs Work, not mastery.

Continue learning
Share and support
Family records and proof options

Keep a record of your learning

Save photos, notes, and attendance. Export a proof packet for compliance or portfolio reviews.

Practice this concept

Start practice
Gakuva activity

How the Lungs Work practice

Practice key ideas from How the Lungs Work.

Free · no login · no ads · Practice answers and completion are not saved. Parent observation remains the lesson record.

Learning resources

Extra practice links — they do not replace Gakuva’s teaching approach.

KidsHealth · Practice link — not the full lesson

Heart and Circulatory System

Open practice (new tab)
Before you open · source notes

Heart and Circulatory System supports How the Lungs Work. An adult previews and guides; this is a learning page, not a scored quiz.

Free educational page, no sign-in required for the tested path.

Before you open

Ask the learner one fact they learned and one question they still have.

Opening this link does not save learning or assess mastery.

Source, access and review notes

Public KidsHealth page. An anonymous GET on 2026-11-12 returned HTTP 200 with no login or payment prompt for this URL. Opening the link does not save practice or assess mastery. An adult should preview and guide the learner.

KidsHealth. “Heart and Circulatory System.” External page; Gakuva does not copy, host, embed, or redistribute materials.

Unknown — link only

Check understanding

  • Trace the air pathway: nose/mouth → trachea → bronchi → bronchioles → alveoli
  • Explain gas exchange in the alveoli: oxygen passes into blood capillaries, carbon dioxide passes out
  • Describe the mechanical process: the diaphragm contracts to pull air in and relaxes to push air out
“Can your child describe what happens to the air they breathe in — how it travels deeper and deeper into the lungs until oxygen swaps into the blood?”

Curriculum record

Type
Conceptual
Subject
Science
Domain
The Human Body
Age range
Ages 9–11