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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
Concepts
Additional Tags
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
- This video is hosted on YouTube
Pros
- Designed to help prepare for the GCSE
- Clear diagrams enhance the concept
Cons
- None