Anderer Ressourcentyp

Siemens Stiftung

C4 pH value of beverages (teacher instructions)

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?".


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.

Anderer Ressourcentyp

Siemens Stiftung

A3 Spontaneous copper plating? (worksheet 1 answer sheet)

Answer sheet:
For the worksheet of the same name for subject teaching in English.

You can find more detailed information on the associated worksheet for subject teaching in English "A3 Spontaneous copper plating? (worksheet 1),? which is available on the media portal of the Siemens Stiftung.


Dieses Material ist Teil einer Sammlung

Arbeitsblatt

Siemens Stiftung

A3 How well does the "fruit and vegetable battery? work? (worksheet 3)

Worksheet for subject teaching in English:
For the student experimentation instructions of the same name. Methodology tool: text puzzle developed by Josef Leisen and Heinz Klippert.


Note: This worksheet has been developed especially for subject teaching in English and for language-sensitive subject teaching. It uses the text puzzle methodology tool developed by Josef Leisen and Heinz Klippert. The text puzzle can be used for independent learning.
Students whose native language is not English and who do not have strong English skills receive support and training in understanding the technical vocabulary. They work with the specialized vocabulary and in this way acquire the ability to communicate about specific subjects.


Dieses Material ist Teil einer Sammlung

Anderer Ressourcentyp

Siemens Stiftung

A3 A professional zinc-copper battery (worksheet 2 answer sheet)

Answer sheet:
For the worksheet of the same name for subject teaching in English.

You can find more detailed information on the associated worksheet for subject teaching in English "A3 A professional zinc-copper battery (worksheet 2),? which is available on the media portal of the Siemens Stiftung.


Dieses Material ist Teil einer Sammlung

Anderer Ressourcentyp

Siemens Stiftung

Washing hands - Avoiding illnesses

Information sheet:
Germs can enter our bodies via our hands. We can protect ourselves against germs through careful hygiene of the hands.

The information sheets answers the following questions:
· What diseases can the germs cause?
· How can diseases be spread via our hands?
· How can the transmission of germs via the hands be prevented?
In addition, it provides useful tips on how to wash hands properly.

Information and ideas:
In context of hand washing, the significance of the skin?s protective acid mantle can be addressed as well as the possible risks of excessive use of soap.

Anderer Ressourcentyp

Siemens Stiftung

The pH value in the human body

Information sheet:
Brief introduction to the topic of acids, bases, and pH value. What role does the pH value play in the human body?

The basics of acids and bases are taught, pH value is defined, and measurement methods to determine the pH value are outlined. Building upon this information, the pH value situation in the human body is described. Two specific examples are looked at in more detail in this context: The pH value of skin and the significance of the pH value of food for healthy nutrition.

Information and ideas:
Brief overview information is provided here. The theoretical part requires further study in class; topics related to everyday issues can be explained in more detail through reports given by the students.

Arbeitsblatt

Siemens Stiftung

A3 Lemon battery - Apparatus and materials (worksheet 6)

Worksheet for subject teaching in English:
For the student experimentation instructions of the same name. Methodology tool: wordlist developed by Josef Leisen and Heinz Klippert.


Note: This worksheet has been developed especially for subject teaching in English and for language-sensitive subject teaching. It uses the word list methodology tool developed by Josef Leisen and Heinz Klippert. The wordlist helps during the introduction of new terms and is used to look up, review, and practice terms.
Students whose native language is not English and who do not have strong English skills receive support and training in understanding the technical vocabulary. They work with the specialized vocabulary and in this way acquire the ability to communicate about specific subjects.


Dieses Material ist Teil einer Sammlung

Anderer Ressourcentyp

Siemens Stiftung

A3 How well does the "fruit and vegetable battery? work? (worksheet 3 answer sheet)

Answer sheet:
For the worksheet of the same name for subject teaching in English.

You can find more detailed information on the associated worksheet for subject teaching in English "A3 How well does the "fruit and vegetable battery? work? (worksheet 3),? which is available on the media portal of the Siemens Stiftung.


Dieses Material ist Teil einer Sammlung

Anderer Ressourcentyp

Siemens Stiftung

C6 Skin and hygiene (link list)

Link list:
Further information on the experiment "C6 Skin and hygiene - Why do we wash our hands?".

The links can be used for preparing or for further study of experiments from Experimento | 10+.

Anderer Ressourcentyp

Siemens Stiftung

C4 pH value of beverages (student instructions)

Experimentation instructions for Experimento | 10+:
Detailed instructions and questions for students on conducting the experiment "pH value of beverages - How acidic is it in the stomach?".


For the experiment, the students are first provided with an overview of the materials to be used and safety information. This overview is followed by the detailed, step-by-step instructions for conducting the experiment. Afterwards, the students are asked to note their observations. Specific questions are used to guide the students as they analyze the results of the experiments. At the end, the students are asked probing questions related to the experiment (an answer sheet is available for teachers).

Notes:
· Observe the safety information in the instructions as well as the applicable safety guidelines for your school and discuss it with your students.
· This student instruction is also available in Word format (doc-file).