Foam fire extinguisher (task) © Siemens Stiftung 2017 CC BY-SA 4.0 international

Foam fire extinguisher (task)

Text

Worksheet:
The task of finding out how a foam fire extinguisher works should follow experience gained in an experiment on how sodium bicarbonate and citric acid react with each other.

Available in: English, Spanish (CREA), German
Type of media: Text
Available as:
PDF (98.9 kByte) DOC (206.0 kByte)
Last update: 2018-03-14
License:

This medium is made available under a CC BY-SA 4.0 international license.

What does this mean?

How to reference this medium
Media package:
Experiments on the topic of energy
Description:
The design of the fire extinguisher should build upon experiments previously conducted by the students. The students should draw a sketch and explain the function.
Incremental hints for answering this task are available under “Foam fire extinguisher (hints for printing)” or “Foam fire extinguisher (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 “Foam fire extinguisher (teacher information).”
Related media:
Foam fire extinguisher (hints for printing) (Text)
Foam fire extinguisher (interactive hints) (Interactive)
Foam fire extinguisher (teacher information) (Text)
Learning resource type:
Worksheet (printable)
Subjects:
Chemistry; Physics
Grade levels:
Grade 5 to 6; Grade 7 to 9; Grade 10 to 13
School types:
Middle/high school
Keywords:
Chemical reaction; Gas; Pressure (physics)
Bibliography:
Siemens Stiftung Media Portal
Author:
Dr. Lutz Stäudel and MediaHouse GmbH
Rights holder:
© Siemens Stiftung 2017
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