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870 results

Ecosystem Forest

The forest – it is not only a collection of trees but a dynamic symbiosis of many different plants and animals. Their com- plex interdependence forms the basis of the ecosystem. DVD 1: Temperate Climes DVD 1 describes the structure and chain of aspects in the de- ciduous mixed forest typical of temperate climes. The various layers (herb layer, brush layer, canopy) are presented with their respective characteristics. The film describes the natural development of the ecosystem forest, compares natural forest and commercial forest and looks critically into human interference. DVD 2: Animals and Plants DVD 2 initially concentrates on the natural development of the forest (natural rejuvenation, succession, climax vege- tation). It then goes on to focus on the forest dwellers and their interrelations. The whole range of animals and plants is presented: from fungi and insects to birds and bats.

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Ecosystem Lake

Lakes are stagnant waters that look quite peaceful to us. But the quiet is deceptive: above and below the water surface, life is anything but peaceful. Phytoplankton and zooplankton are eaten by small predators such as polyps or hydrachnidiae. Toebiters, dragonfly and beetle larvae are food for the water scorpion. As every animal feeds on different prey and in turn is eaten by various predators, a food web is created. The amount and variety of the lake inhabitants depends on the concentration of nutrients. In clear lakes, aquatic plants may spread down to a depth of 10 metres. Different zones with particular plant species are clearly visible. Also animals above the water profit from the rich underwater life, for example the waterfowl. Ever since the lake was formed, wind and waves have been carrying dead plants and animals to the shore, where they have sunk down and decomposed. At the same speed at which the lakeside grows, the water surface of the lake shrinks. With its extensive additional material the didactic DVD is ideally suited for use in the classroom.

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Ecosystem Sea

The oceans have been the largest connected ecosystem of the world since hundreds of millions of years. All life originated here, and a stable system ranging from single-cell plants and animals to huge vertebrates has been established. An incredible abundance of shapes and colours has emerged. Even today, we know only a fraction of this variety. We know less about the co-existence of these beings, their interdependency and the conditions and particulars of their food chain than we know about one or the other celestial body. The largest consumers of the sea, sharks and whales have an important task in the marine ecosystem. They ensure that the populations of small predators like seals, groupers and tuna do not grow excessively. In the film, the interrelation between the individual creatures is illustrated and the ecosystem sea as well as the dangers of human interference are explained using the example of sharks and whales. We learn about these animals’ characteristics and structure. We also see why and how they are endangered and what damage the marine ecosystem might suffer if these animals were exterminated. The climate change and its consequences for the ecosystem sea are illustrated by the example of sharks and whales.

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Egypt

Roughly from 3100 to 322 BC, one of the greatest and most powerful cultures of antiquity flourished in the Nile Valley.

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Movie

Eichendorffs Marmorbild

Joseph von Eichendorff (1788 - 1857) war ein bedeutender Schriftsteller der Romantik. Merkmale dieser Epoche waren die Naturverbundenheit, Sehnsucht, Religion, aber auch die Psyche des Menschen. Diese Motive aufgreifend, schrieb Eichendorff seine Novelle „Das Marmorbild“.

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Movie

Ein Himmel voller Bienen

Bienen sind für die Umwelt, aber auch für das Überleben der Menschen unerlässlich – und doch sind insbesondere die Wildbienen vom Aussterben bedroht.

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Movie

Ein Rap entsteht

Der Rap, als Teil des Hip-Hop, entwickelte sich in den 1970er und 80er Jahren in den USA, hauptsächlich in den New Yorker Stadtteilen Bronx und Brooklyn.

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Movie

Eisbär

Eisbären zählen zu den größten Landraubtieren der Welt. Sie leben den extremen Bedingungen der Arktis angepasst: Ihr weißes Fell dient der Tarnung und Isolation, und die kräftigen Pfoten zum Wandern auf dem Eis.

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Movie

Eisenzeit

Vor beinah 3.000 Jahren gelangte die Technik der Eisenherstellung nach Europa. Die Vorteile von Eisen gegenüber der Bronze waren eine größere Härte und in Eisenerz ein besser verfügbarer Rohstoff. Es erfolgte eine allmähliche Verdrängung der Bronze und ungefähr ab 700 v.Chr. kann man ín Europa die Epoche der Eisenzeit verorten.

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Elections

There is no democracy without regular elections. Elections are the citizen’s most important means of actively shaping the politics of his or her state. Democracy is based on the citizens’ recognition and support. Everyone has the possibility of political involvement.

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