Experiment Station: Transpiration and Evaporative Cooling

Transpiration and Evaporative Cooling

Through two different experimental approaches, pupils learn about the phenomenon of transpiration in plants. The cooling effect resulting from transpiration is also covered in the text.

LEARNING GOALS

Pupils can explain the phenomena of transpiration and evaporative cooling, and their role in the cooling effect of plants in urban areas.

BACKGROUND INFORMATION

  • SUBJECTS: Biology, Geography, Physics
    • REQUIRED PREMISES: classroom
      • TIME REQUIRED: approximately 20 minutes

      REQUIRED MATERIALS

      • Worksheet (download): WS_transpiration_evaporative cooling
      • Materiala per Gruppe experiment 1:
      • 1 plant (cut flower, white tulips work best)
      • Glass with water
      • Ink
      • Knife
      • Cutting board
      • Spoon
      • Materials per group experiment 2:
      • humidity sensor (O2 sensor)
      • Ivy
      • Scissors
      • Lamp (light)
      • Sample container
      • clock
      WS_transpiration_evaporative cooling

      Download

      HINT

      There is a whole project day on the topic of ‘green facades’, entitled ‘Combating urban heat with urban greenery: green facades’.

      The European Commission support for the production of this publication does not constitute an endorsement of the contents which reflects the views only of the authors, and the Commission cannot be held responsible for any use which may be made of the information contained therein.
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