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🔬 Science - Class 7
Unit 3 · Living Beings and Their Structure

Roots and Stems Presentation

ScienceSubject
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Unit 3 · Living Beings and Their Structure

Roots and Stems

Science & Technology · Grade 7

Learning Objectives

🌱

Name the parts of a root and say what each does

💧

Explain why root hairs matter so much

⚖️

Say when a fibrous root wins and when a tap root wins

🥔

Tell a stem from a root, even underground

The Parts of a Root

  • Primary root: the first root to grow from the seed
  • Secondary roots: thinner roots branching from it
  • Root hairs: fine threads that do all the drinking
  • Root cap: protects the growing tip pushing through soil
Diagram of a flowering plant showing flower, fruit, stem, leaf, and root

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Presenter notes: Open with a potato and a carrot held up, one in each hand, and ask which one is a root. Almost every hand will say both. Say nothing, put them down, and tell the class that by the end of the lesson they will know that one of these is not a root at all, and will be able to prove it with something in their own kitchen. Do not reveal which one.