Anderer Ressourcentyp

Siemens Stiftung

Amino acids and proteins in the human body (link list)

Link list:
Further information on the experiment "Amino acids and proteins in the human body - We verify their presence".

The links can be used for preparing or for further study of the experiment.

Anderer Ressourcentyp

Siemens Stiftung

A4 Evaporation heat (link list)

Link list:
Further information on the experiment "A4 Evaporation heat - How to cool with heat".

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

Anderer Ressourcentyp

Siemens Stiftung

A4 Evaporation heat (teacher instructions)

Experimentation instructions for Experimento | 10+:
Background information on the content and practical information on conducting the experiment "Evaporation heat - How to cool with heat". This experiment comprises two subexperiments.


The materials supplied allow eight groups of students to conduct the experiments simultaneously. If all subexperiments are conducted in the sequence below, they can be used to complement a learning unit on evaporation heat and "evaporative cooling." This provides a good basis for further study of general thermodynamics down to the particle level.

The experiment comprises two subexperiments:
· Why do you freeze in wet clothing?
· How does a wet cotton pad cool you?

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.

Bild

Siemens Stiftung

Auto

Foto: Auto als typische Schall- und Lärmquelle im Verkehr.Ein PKW im Stadtverkehr produziert ca. 80 Dezibel.Hinweise und Ideen:Einstiegsbild oder zur Illustration.

Primärmaterial/Quelle

Siemens Stiftung

Columbia Regional Sewage Plant

Web resource:
Website of the Columbia Regional Wastewater Treatment Plant.


Information and ideas:
This resource is also well suited for independent analysis by the students for presentations and projects.

Text

Siemens Stiftung

Data transmission with LEDs

Web resource:
Researchers at the Fraunhofer Heinrich Hertz Institute in Berlin and at Siemens AG have successfully achieved a data transmission rate of 500 megabits per second (Mbit/s) using a commercially available LED.


This article provides information on the advantages of data transmission with light compared to wireless transmission and shows possible applications.

Information and ideas:
This technology is also applied in the construction of LED miniprojectors that can be integrated into digital cameras or mobile phones. This technology would make it possible, for example, not only to take photos but also to immediately project them on a wall. A small blue laser diode is used for this.

Anderer Ressourcentyp

Siemens Stiftung

Energy for the future: We design an energy strategy (link list)

Link list:
List of selected links for processing the inquiry task of the same name which is suitable on the media portal of the Siemens Stiftung.

Information and ideas:
Suitable as a source for Internet inquiry for teachers and students alike.

Anderer Ressourcentyp

Siemens Stiftung

Water as an energy source

Information sheet:
How do you use "water" as a energy source?

Water covers around two-thirds of planet earth. Water is a carrier of different forms of energy. The hydropower (mechanical energy) of rivers and lakes is one of the oldest forms of energy used. However, water is also a carrier of thermal and chemical energy. In the case of geothermal power or fuel cell technology, for example, we convert these forms of energy to useful energy for people. No matter what form of energy we use, it is always converted without carbon dioxide emissions!

Information and ideas:
The use of hydropower over the course of history intersects with history studies.

Using the following source: International Energy Agency (IEA)

Anderer Ressourcentyp

Siemens Stiftung

Structure of the human eye (answer sheet)

Answer sheet:
For the worksheet of the same name.


Information and ideas:
You can find more detailed information on the associated worksheet "Structure of the human eye," which is available on the media portal of the Siemens Stiftung.

Anderer Ressourcentyp

Siemens Stiftung

Separating residual waste magnetically

Information sheet:
Magnetic separation and eddy current separation, two magnetic separation procedures for mixtures of materials are compared with each other using the example of sorting residual waste.

The two magnetic separation procedures are used, for example, to sort residual waste. The text provides information about the kinds of materials the respective procedure is suitable for and the physical principle each procedure is based on. Sample applications of these principles that the students are familiar with from class are mentioned. The way the two procedures work is explained and technical implementation for separating residual waste is outlined.

Information and ideas:
The example of sorting residual waste also works well for learning about other physical separation procedures, such as sifting (separation by grain size) and wind sifting (separation by density).