Not all shade is the same (task)
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Worksheet:
On hot days, why is it cooler in the shade of a tree with a thick canopy of leaves than under a patio umbrella? Task with a contextual scenario.
English, Spanish (CREA), German
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2018-02-22
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How to reference this medium
A short story leads to the task’s question. The students should explain why it is cooler in the shade of a tree with a thick canopy of leaves than under a patio umbrella covered with fabric. The question can be answered based on the energy balance during the transition between the states of aggregation; in this example, the transition is the evaporation of water from the leaves of a plant.
Incremental hints for answering this task are available under “Not all shade is the same (hints for printing)” or “Not all shade is the same (interactive hints)” on the media portal of the Siemens Stiftung. The worksheet includes QR codes for using the interactive hints online and viewing the solution.
Explanations of the experiment for the teacher are found in “Not all shade is the same (teacher information).”
Incremental hints for answering this task are available under “Not all shade is the same (hints for printing)” or “Not all shade is the same (interactive hints)” on the media portal of the Siemens Stiftung. The worksheet includes QR codes for using the interactive hints online and viewing the solution.
Explanations of the experiment for the teacher are found in “Not all shade is the same (teacher information).”
Worksheet (printable)
Biology; Chemistry; Physics
Grade 5 to 6; Grade 7 to 9; Grade 10 to 13
Middle/high school
Evaporation; State of aggregation
Siemens Stiftung Media Portal
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