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

Monosaccharides

Interactive table:
For the two monosaccharides aldose (glucose) and ketose (fructose), the molecular formula, structural formula, and functional group can be worked out interactively in a table.

The interactive table can be filled out in two ways:
· All cells at once
· Each cell individually

Anderer Ressourcentyp

Siemens Stiftung

C2 Carbohydrates as providers of energy for metabolism (teacher instructions)

Experimentation instructions for Experimento | 10+:
Background information on the content and practical information on conducting the experiment "Carbohydrates as providers of energy for metabolism - Starch and sugar". This experiment comprises two subexperiments.


This experiment is an introductory experiment to the overall topic of digestion and metabolism in the human body. It is suitable as a qualitative introduction to the topic of digestion for the age group up to 16 years. However, further study of the topic of metabolism necessitates considerable basic knowledge of organic chemistry and biochemistry, which cannot be assumed until the age group 16+ or acquired then. The materials supplied allow eight groups of students to conduct the experiments simultaneously.

The experiment comprises two subexperiments:
· Potatoes contain starch
· Hydrolysis of starch

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

C2 Carbohydrates as providers of energy for metabolism (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 "C2 Carbohydrates as providers of energy for metabolism (worksheet 1),? which is available on the media portal of the Siemens Stiftung.


Dieses Material ist Teil einer Sammlung

Experiment

Siemens Stiftung

B1 Water cycle (teacher instructions)

Experimentation instructions for Experimento | 10+:
Background information on the content and practical information on conducting the experiment "Water cycle - Evaporation from plant leaves".


This very simple experiment is ideally suited as an introduction to various topics. For example, it can be used in geography class to study the water cycle and the climate, and in biology class, to study water as the basis of life and its importance in plant metabolism. This experiment can even be used in physics and chemistry to present the states of matter using a real-world example. The materials and apparatus 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

C1 We burn sugar (teacher instructions)

Experimentation instructions for Experimento | 10+:
Background information on the content and practical information on conducting the experiment "We burn sugar - Cellular respiration and respiratory chain". This experiment comprises three subexperiments.


This is a typical introductory experiment to the overall topic of energy supply in the human body, cellular respiration, and the respiratory chain. Three straightforward subexperiments (combustion of sugar with and without a catalyst and verification of water and carbon dioxide [CO2] in exhaled air) suggest the obvious explanation that sugar is also burned in the human body. The analogy between heterogeneous catalysis in the combustion of sugar in the experiment and biocatalytic combustion in the body leads on to the topic of energy metabolism and cellular respiration in the human body. In the age range up to 16 years, a qualitative interpretation of the experimental results may suffice. In specialized teaching in the age group 16+, teachers must go into the subject matter in considerably more detail independently of the experiment, provided adequate prior knowledge can be assumed. The materials and apparatus supplied allow eight groups of students to conduct the experiments simultaneously.

The experiment comprises three subexperiments:
· Sugar can be burned
· Verification of reaction products in the air that is breathed: Substance A
· Verification of reaction products in the air that is breathed: Substance B

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

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.

Anderer Ressourcentyp

Siemens Stiftung

C3 How does human digestion break down fats? (link list)

Link list:
Further information on the experiment "C3 How does human digestion break down fats? - Saponification of edible oil".

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

Anderer Ressourcentyp

Siemens Stiftung

Reaction to produce sucrose

Interactive chemical equations:
The chemical equation for the production of sucrose can be developed interactively as a word equation and reaction equation.

The two equations can be developed in two ways:
· Entire equation at once
· Individually by educts and products.