Anderer Ressourcentyp

Siemens Stiftung

C4 pH value of beverages (link list)

Link list:
Further information on the experiment "C4 pH value of beverages - How acidic is it in the stomach?".

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

Anderer Ressourcentyp

Siemens Stiftung

Fats in nutrition

Information sheet:
Fat in excessive quantities can harm human health. Therefore, it is important to know which fats and how much are important and beneficial for human nutrition.

The information sheet answers the following questions:
· What do we need fats for?
· What are fats made of and what types are there?
· What are the health consequences of eating too much fat?
· What are hidden fats and what foods contain them?
· How can I consciously eat a healthy diet?

Information and ideas:
The topics of carbohydrates and proteins can be rehashed by the students in a similar manner with respect to their importance for human nutrition.

Using the following source: "Kalorien mundgerecht", 14th edition, 2010, Neuer Umschau Buchverlag GmbH, Neustadt, and Nestle Deutschland AG, Frankfurt am Main

Arbeitsblatt

Siemens Stiftung

C3 How does human digestion break down fats? (worksheet 2)

Worksheet for subject teaching in English:
For the student experimentation instructions of the same name. Methodology tool: film strip 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 film strip methodology tool developed by Josef Leisen and Heinz Klippert. The film strip supports coherent speaking and the correct chronological and content-related sequence of actions or events.
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

C3 How does human digestion break down fats? (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 "C3 How does human digestion break down fats? (worksheet 1),? which is available on the media portal of the Siemens Stiftung.


Dieses Material ist Teil einer Sammlung

Anderer Ressourcentyp

Siemens Stiftung

C3 How does human digestion break down fats? (student instructions)

Experimentation instructions for Experimento | 10+:
Detailed instructions and questions for students on conducting the experiment "How does human digestion break down fats? - Saponification of edible oil". This experiment comprises two subexperiments.


The experiment comprises two subexperiments:

· We emulsify oil
· Saponification of edible oil

For each subexperiment, 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).

Anderer Ressourcentyp

Siemens Stiftung

C3 How does human digestion break down fats? (answer sheet)

Answer sheet:
For the student experimentation instructions of the same name.

The answer sheet contains sample answers to all questions asked in the student experimentation instructions. In some cases, the answers are very short, often only in the form of key words. Depending on the learning objective, they can be augmented and enlarged upon with additional material from textbooks or Internet research.
Likewise, the answer sheet will be elaborate on the analyses for the individual subexperiments, but only in cases where experience shows that there could be difficulties.

You will find more detailed information in the related experimentation instructions "C3 How does the human digestion break down fats? (student instructions)", which are available on the media portal of the Siemens Stiftung.

Übung

Siemens Stiftung

Acids and bases in foods

Interactive exercise:
Which products are acidic, basic, or neutral or have an acidic, basic, or neutral reaction?

Twelve everyday products are to be classified with respect to their properties as acidic (a), basic (b), or neutral (n). The corresponding letters can be dragged to the right positions. The exercise can also be completed by hand on the interactive whiteboard.

Information and ideas:
The students can collect and classify other everyday products. For which of the three categories - acid, base, neutral - is it most difficult to find examples?

Experiment

Siemens Stiftung

Our mouth

Experimentation instructions for Experimento | 4+:
What is inside our mouth? What is saliva for?

The teeth are used to cut, chop and chew the food. The saliva moistens the oral cavity, which is what makes swallowing, speaking, and tasting possible.

Information and Ideas:
· The teacher/educator should prepare bread or equivalent and divide it into small pieces. Make sure that none of the children has any intolerance to the foods in question.
· Please observe the general safety and hygiene measures and safety instructions in the respective teaching methods 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

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.

Experiment

Siemens Stiftung

C3 How does human digestion break down fats? (teacher instructions)

Experimentation instructions for Experimento | 10+:
Background information on the content and practical information on conducting the experiment "How does human digestion break down fats? - Saponification of edible oil". This experiment comprises two subexperiments.


These simple experiments for the emulsification and saponification of fats are well suited as an introduction to the topic of digestion and metabolism in the human body. Starting from the experiment that merely demonstrates that fats can be split into fatty acids, the topic must then be related to human digestion. These teacher instructions provide information and suggestions for this. The materials and apparatus supplied are sufficient to allow eight groups of students to conduct the experiments simultaneously.

The experiment comprises two subexperiments:

· We emulsify oil
· Saponification of edible oil

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.