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Website
Microscopy UK

Microscopy Uk: Water Movement Through a Plant

For Students 9th - 10th
This thorough site describes the forces and processes involved in the movement of water through a plant.
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Lesson Plan
University Corporation for Atmospheric Research

Ucar: Modeling Tree Transpiration

For Teachers 6th - 8th
In this activity, students will observe and measure the water given off through transpiration by a plant in a small terrarium.
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Activity
Science Bob Pflugfelder

Science Bob: Add Color to Flowers Using Science

For Students 4th - 8th
Use this experiment to discover how to make colored flowers using common supplies with details on why it works.