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🏃 KNOW PRIMARY · AGES 6–11

HEALTH &
FITNESS

🦴 Your Bones Are Alive and Always Changing!

📖 200 Topics 🆓 FREE + PRO ⏱️ 5 min per comic 🧠 Quiz included
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LIVING
Bones rebuild daily
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IMPACT
Jump and walk
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CALCIUM
Minerals pack in
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DENSER
Harder to break
TODAY
Move for strong bones
🦴 BONE DENSITY SCIENCE
TOPIC 08 · HEALTH & FITNESS · BONES · CALCIUM · STRENGTH
PAGE 1 OF 5 — LIVING BONES
NOT DEAD ROCK
Comic panel about bone density science: Not Dead Rock, educational kids illustration
YOUR BONES ARE ALIVE
Bones might look hard and still, but they are living tissue. Inside them, special cells are constantly breaking down old bone and building new bone. This remodelling keeps your skeleton strong and repairs tiny cracks from everyday life. When you are young, your body builds bone faster than it loses it. That is why childhood and the teen years are a golden time to grow a sturdy frame.
🔄 REMODEL
Bone remodelling means old bone tissue is replaced by new bone tissue all through your life.
ALIVE!
CELL TEAM
Comic panel about bone density science: Your Bones Are Alive, Cell Team, educational kids illustration
🔬 Osteoblasts build new bone
♻️ Old bone gets recycled
GROWING
Comic panel about bone density science: Growing, educational kids illustration
📈 Kids build bone rapidly
🌱 Strong habits start early
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