Water 4: Detect invisible substances in water 2 (student instructions) © Siemens Stiftung 2016 CC BY-SA 4.0 international

Water 4: Detect invisible substances in water 2 (student instructions)

Text

Experimentation instructions for students in grades 5, 6, and 7:
Detailed instructions and questions for students on conducting the fourth subexperiment on water quality. The presence of dissolved substances is verified via electrical conductivity.

English, German
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PDF (722.3 kByte) DOC (2.9 MByte)
2016-08-12
The students will investigate the conductivity of pure water as well as of water with citric acid and water with washing soda.

The instructions first include a photo and a list of the required apparatus and materials. Text and pictures explain the preparations for the experiment step by step. Then several assignments are presented: The students should express their guesses, conduct the experiment, and note down their observations.

Information and ideas:
• Observe the safety information in these instructions as well as in the teacher information related to the experiment and discuss them with your students.
• Also observe the applicable safety guidelines for your school.
There are no other media directly related to this file.
Experiment
Chemistry; Physics
Grade 5 to 6
Middle/high school
Drinking water; Electrical circuit; Water pollution; Water treatment
Siemens Stiftung Media Portal
Michael Knieb, Alexander Ruß for the Siemens Stiftung
© Siemens Stiftung 2016
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