C4 pH value of beverages (teacher instructions)
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Experimentation instructions for Experimento | 10+:
Background information on the content and practical information on conducting the experiment "pH value of beverages – How acidic is it in the stomach?".
Type of media:
Text
Last update:
2018-11-20
License:

This medium is made available under a CC BY-SA 4.0 international license.
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How to reference this medium

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:
Description:
This is a typical introductory experiment. The experimentally acquired finding that “humans can tolerate extremely acidic beverages" leads to the conclusion that “it must be very acidic in the stomach". The question is “why?". This automatically introduces us to the topic of the digestive tract and digestion. Depending on the age group, the teacher can and must deal with the topic in more detail. Apart from the topic of digestion in biology lessons, students’ basic knowledge of acids and bases can be put to excellent use in the experiment in chemistry lessons. The materials supplied allow eight groups of students to conduct the experiments simultaneously.
Notes:
• Observe the safety information in the instructions as well as the applicable safety guidelines for your school.
• All materials mentioned in the instructions will have to be purchased directly from commercial sources.
Notes:
• Observe the safety information in the instructions as well as the applicable safety guidelines for your school.
• All materials mentioned in the instructions will have to be purchased directly from commercial sources.
Related media:
There are no other media directly related to this file.
Learning resource type:
Experiment
Subjects:
Biology; Chemistry
Grade levels:
Grade 5 to 6; Grade 7 to 9; Grade 10 to 13
School types:
Middle/high school
Keywords:
Acids; Base (chemistry); Digestive organ; Enzyme; Health; Nutrition; Stomach
Bibliography:
Siemens Stiftung Media Portal
Author:
Georg Frie, Prof. Dr. Claudia Nerdel for Siemens Stiftung
Rights holder:
© Siemens Stiftung 2015