Transport in Plants, Part 2: Xylem and Transpiration

Ninety-nine percent of the water absorbed in plants transpires into the atmosphere. The second video in a three-part series explains transpiration in plants. It details how they pull water into the roots; how water passes through the xylem; and finally how water transpires through the stem and leaves.

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CCSS: Adaptable
Instructional Ideas

  • Use a straw to demonstrate how liquid leaving the top of the system pulls in more liquid in the bottom
  • Discuss why more evaporation happens from leaves than stems in the same weather conditions
Classroom Considerations

  • Assumes prior knowledge of the structure of leaves
Pros

  • Designed to help prepare for the GCSE
  • Clear diagrams enhance the concept
Cons

  • None