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Ivy Waters International Standards · G3.S-02

Human Anatomy (Skeletons & Muscles)

Version 2.2.0 · 2026 · © 2026 Ivy Waters International. Licensed under CC BY 4.0.

Ages are the anchor. Grade names are Ivy Waters stage labels for this framework, not a claim about any national school system.

G3.S-02Ages 8–9 · Grade 3 · Science

Human Anatomy (Skeletons & Muscles)

Science & Innovation

Your child can explain how the human skeletal system protects vital organs and works in tandem with muscles to allow movement.

In real life

After a long climb, your child presses their ribs and says, "These are like armour for your heart." Then they flex an arm to show the muscle doing the pulling.

How to cite this

Standards are permanent: an ID issued in this edition keeps pointing at the same standard. Cite it like this.

Ivy Waters International Standards v2.2.0 (2026). Standard G3.S-02: Human Anatomy (Skeletons & Muscles). https://ivywaters.com/standards/G3.S-02

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Ages are the anchor. Grade names are Ivy Waters stage labels for this framework, not a claim about any national school system.

A machine-readable CC BY 4.0 release is published for reuse and integration. Schools and tools may display, adapt, and map their own records against it with attribution.

Ivy Waters International Standards · Version 2.2.0 · 2026 · © 2026 Ivy Waters International. Licensed under CC BY 4.0.

The school for a childhood lived beyond the classroom · Ivy Waters International · © 2026 All rights reserved.