Cells, Tissues & Organs
Understand that the body is organised in a hierarchy: tiny cells are the building blocks, groups of similar cells form tissues, tissues combine into organs (like the heart or stomach), and organs work together in organ systems (like the circulatory system)
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Cells, Tissues & Organs means knowing the body hierarchy from cells to tissues to organs to organ systems. We will practise once together, then check a fresh example.
Spend about 12 minutes ordering hierarchy cards, then checking one fresh level.
Build the cell–tissue–organ–system hierarchy and explain a cardiac example.
Build the cell–tissue–organ–system hierarchy and explain a cardiac example.
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Practice this concept
Start practiceCells, Tissues & Organs practice
Order cells, tissues, organs, and systems.
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Learning resources
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BBC Bitesize · Practice link — not the full lesson
Living organisms
Before you open · source notes
Living organisms supports Cells, Tissues & Organs. An adult previews and guides; this is a learning page, not a scored quiz.
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Before you openAsk the learner one fact they learned and one question they still have.
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Source, access and review notes
Public BBC Bitesize 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.
BBC Bitesize. “Living organisms.” External page; Gakuva does not copy, host, embed, or redistribute materials.
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Check understanding
- State that cells are the smallest building blocks of the body, too small to see without a microscope
- Describe the hierarchy: cells → tissues → organs → organ systems
- Give an example: muscle cells form muscle tissue, which forms the heart organ, which is part of the circulatory system
“Can your child explain that the body is made of tiny cells, and that cells group together to make tissues, which make organs, which make whole systems?”
Curriculum record
- Type
- Conceptual
- Subject
- Science
- Domain
- The Human Body
- Age range
- Ages 7–9