Xylem and phloem tissues make up the “circulatory” system of a plant. The xylem tissues transport water from the roots to all of the other living tissues, while the phloem tissues transport sugars from the green tissues where photosynthesis occurs to non-green tissues such as flowers, seeds, and roots. Transpiration is the loss of water through open stomata in the leaf and the large leaf veins. This demonstration allows students to see the xylem tissues and observe the direction of the water flow. The pale colour of Napa cabbage makes it ideal for observation.
Related Resources:
What's the Matter? (Grade 5)
Categories: Lab/Student Activity, Lesson Plan
Written by Bruno Galle, Don Galbraith Award Recipient 2024, Tyndale University This is an introductory lesson to a unit on matter and introduces key concepts about matter. The goal of the lesson... read more
Teacher Demo: Neutrally Buoyant Helium Balloon
Categories: Teacher Demonstration
Almost every child at one time or another has experienced the wonder, and later, a sense of loss, from a helium balloon. The emotional attachment most students have to helium balloons can be used to... read more
Student Activity: Series Circuits
Categories: Lab/Student Activity
In this demo, two circuits are constructed to enable comparison of the brightness of a light bulb placed in a circuit with one cell and the brightness of the same light bulb in a circuit with three... read more