Video

Siemens Stiftung

Greenhouse effect

Video (01:24 minutes):
Explains the principle of the greenhouse effect and its importance for the Earth?s ecosystem.


The video starts with a brief introduction to the greenhouse gas carbon dioxide. A graphic then illustrates the functional principle of the greenhouse effect. Two things become clear: firstly, that life on Earth would not be possible without the greenhouse effect; secondly, that the human-induced greenhouse effect is having a harmful effect on the Earth. Carbon dioxide produced by humans is named as the cause of this harmful effect. The video ends on the following question for further study, "... and where does this additional CO2 come from?"

Information and ideas:
This video sequence can be followed, for example, by a detailed discussion of harmful greenhouse gases.

This video is an excerpt from the teaching DVD, "Das grüne Paradoxon - Warum die Erde wärmer wird".

Anderer Ressourcentyp

Siemens Stiftung

B6 Renewable energies (student instructions)

Experimentation instructions for Experimento | 10+:
Detailed instructions and questions for students on conducting the experiment "Renewable energies - Sun, water, wind, hydrogen, and fuel cell". This experiment comprises four subexperiments.

The experiment comprises four subexperiments:
· Electrical energy from the radiant energy of light
· Electrical energy from hydropower
· Electrical energy from wind power
· Conversion of electrical energy into chemical energy and vice versa

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).

Experiment

Siemens Stiftung

A5 Properties of solar cells (student instructions)

Experimentation instructions for Experimento | 10+:
Background information on the content and practical information on conducting the experiment "Properties of solar cells - Voltage, current and power". This experiment comprises six subexperiments.

The experiment comprises six subexperiments:
· First investigations with the solar cell
· Short-circuit current and no-load voltage at different distances from the lamp
· What happens when you connect solar cells in series or in parallel?
· Current and voltage with solar cells connected in series and in parallel
· How do solar cells connected in series or in parallel behave when shaded?
· Optimizing the power output of solar cells

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

;: Energy conversion

Guideline:
Energy "generation" is energy conversion. It provides an overview of the most important energy converters from a technology standpoint, such as turbines and fuel cells. The quality of these technologies for energy conversion is measured in terms of efficiency.

Specialized basic and background information on the topic of "energy conversion" for teachers.

Information and ideas:
The guideline can also be handed out to students for further study. The guideline contains the most important formulates, textbooks may need to be used for background.

Bild

Siemens Stiftung

Tree

Photo:
A group of trees in late summer. Photosynthesis only takes place in the green leaves.


Information and ideas:
An example of the conversion of radiant energy into chemical energy.

Anderer Ressourcentyp

Siemens Stiftung

Energy consumption and renewable energies in private households

Information sheet:
Information on the energy consumption in a German household with four people and the energy yields of renewable energy systems for private households.

Students learn how many kilowatt-hours of electrical energy and heat are used in an average four-person household in Germany. Typical values are provided, for example, the energy consumption of a hair dryer or the heating value of one cubic meter of gas.
In addition, the energy yields of photovoltaic, solar thermal, and geothermal systems are explained in more detail and specific values are given.

Using the following sources: Wikipedia; www.musterhaushalt.de; www.einfamilienhaus.org; www.solaranlagen-portal.com; www.paradigma.de; "Thermische Solaranlagen für Warmwasser und Heizung,? Fraunhofer ISE Stefan Hess (2012); "Checkliste Wärmepumpen 2012/13,? Verbraucherzentrale Energieberatung;

Arbeitsblatt

Siemens Stiftung

B6 Renewable energies (worksheet 2)

Worksheet for subject teaching in English:
For the student experimentation instructions of the same name. Methodology tool: domino 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 domino methodology tool developed by Josef Leisen and Heinz Klippert. The domino is well suited for introducing and practicing an unfamiliar subject matter and is also suited for internal differentiation.
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

Arbeitsblatt

Siemens Stiftung

B5 We build a thermal solar plant (worksheet 2)

Worksheet for subject teaching in English:
For the student experimentation instructions of the same name. Methodology tool: technical terms 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 technical terms methodology tool developed by Josef Leisen and Heinz Klippert. Technical terms serve to explain facts and clearly present technical information. Specific linguistic devices are used for this purpose, depending on the field.
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

Arbeitsblatt

Siemens Stiftung

A5 How do solar cells connected in series or in parallel behave when shaded? (worksheet 5)

Worksheet for subject teaching in English:
For the student experimentation instructions of the same name. Methodology tool: picture sequence 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 picture sequence methodology tool developed by Josef Leisen and Heinz Klippert. The picture sequence is used to train students how to correctly comprehend and then explain the chronological and logical sequences of 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

A5 Current and voltage with solar cells connected in series and in parallel (worksheet 4 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 "A5 Current and voltage with solar cells connected in series and in parallel (worksheet 4),? which is available on the media portal of the Siemens Stiftung.


Dieses Material ist Teil einer Sammlung