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Inhaltlich verantwortlich: Birgit Kersten
Eingestellt am: 30.06.2022
Stand vom: 02.01.2023

Dieses Medium ist freies Lern- und Lehrmaterial im Sinne der UNESCO-Initiative Open Educational Ressources (OER) Details zu OER. Sie dürfen diesen Beitrag entsprechend oben angegebener Lizenz verwenden, wenn Sie folgende Quellenangabe benutzen:
Birgit Kersten auf dem Bildungsserver Sachsen-Anhalt (http://www.bildung-lsa.de/index.php?KAT_ID=13532#art41305)
Open Educational Resources

Beitrag eingestellt von: Frau Birgit Kersten
Telefon: +49 (0)345 2042 254
E-Mail: birgit.kersten@bildung-lsa.de

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1241 Datensätze auf 125 Seiten
VIDEO
Overview of membrane filters
 (0 Min ) 
Table: An overview of the different pressure-driven membrane filtration processes. Membrane filters consist of a microporous material. During filtration of water suspended particles above a certain size are retained while smaller particles can pass through the membrane ...
VIDEO
Redox flow cell
 (0 Min ) 
Schematic diagram: The redox flow cell is an accumulator and works, so to speak, with liquid electrode materials, e.g., with zinc (Zn) and bromine (Br). The graphic shows the flow of the electrode material during discharging of the cell. Two graphite electrodes (black s...
VIDEO
Chemical energy
 (0 Min ) 
Chart: Chemical energy as binding energy between atoms (as a potential curve in the illustration). Chemical energy is present both in the bond between atoms and molecules as well as in the potential for chemical bonding. This energy can be released in the form of heat d...
VIDEO
Photosynthesis – an overview
 (1 Min ) 
Video (01:04 minutes): Explains photosynthesis, one of the most important metabolic processes on Earth. The video provides a brief overview of the biochemical process of photosynthesis. Using light and the leaf pigment chlorophyll, photosynthesis converts carbon dioxide...
VIDEO
Waste water purification (M/HS)
 (2 Min ) 
Video (02:36 minutes): Demonstrates and describes the individual purification stages in a sewage plant. Waste water purification in a sewage plant is usually performed in three stages: mechanical, biological, and chemical purification. The video shows the individual sta...
VIDEO
Greenhouse effect
 (1 Min ) 
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 ...
VIDEO
Water as solvent for salts and gases
 (0 Min ) 
Chart: Water is an excellent solvent of ionic and polar substances because it is a polar liquid. Solubility in water often depends strongly on the temperature; solids and gases behave differently. The higher the temperature the less soluble gases are in water, solids ho...
VIDEO
Density depending on temperature
 (0 Min ) 
Chart: Density-temperature structure of water compared with benzol; comparison shows the density anomaly of water. Most substances have a continuous trend: the higher the temperature, the lower its density. In phase transitions (gas –> liquid –> solid) the den...
VIDEO
Water molecule
 (0 Min ) 
Graphic: Presentation of a water molecule as ball model. Graphical presentation of a water molecule: The red oxygen atom is much larger than the two connected hydrogen atoms. The angle between the two hydrogen atoms is 104 degrees, the deviation from the ideal tetrahedr...
VIDEO
Geometry of hydrogen bridges in H2O
 (0 Min ) 
Graphic: Geometric positioning of water molecules during the forming of hydrogen bridge bonds. Shows the different possibilities for hydrogen bridge bonds in the water molecule. Information and ideas: Introduces students to the topic "chemical bonds, hydrogen bridge bon...
1241 Datensätze auf 125 Seiten