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Artensterben
Das ökologische Gleichgewicht der Erde ist nachhaltig gestört. Ein erhebliches Ausmaß an Artensterben ist zu beobachten. Die Gründe sind zahlreich und sowohl mit dem natürlichen Kreislauf als auch mit den Eingriffen des Menschen in die Natur verknüpft.
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Pubertät
Die Zeit zwischen Mädchen und Frau, zwischen Junge und Mann ist aufregend und extrem. Mal geht es auf, dann wieder ab. Es ist eine Zeit der Gegensätze und Launen, Irrungen und Wirrungen. Man nennt sie: Pubertät. Biologisch zeichnet sich die Pubertät durch die Veränderung der primären und sekundären Geschlechtsmerkmale aus. Der Reifeprozess verläuft bei Mädchen und Jungen unterschiedlich. Wenn Kinder in die Pubertät kommen, entsteht im Gehirn eine neue Ordnung. Früher dachte man, dass das Gehirn im Alter von sechs Jahren ausgebildet sei. Heute weiß man, dass das Gehirn während der Pubertät noch einmal ganz neu umstrukturiert wird. Die Meinung der Erwachsenen wird plötzlich nur noch sehr ungern akzeptiert. Dafür suchen Jugendliche nun verstärkt Rückhalt bei Gleichaltrigen. Unser Unterrichtsfilm zeigt die Erfahrungen von Mädchen und Jungen sowie Eltern auf.
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Skin
It is essential for survival. It can cool the body, but must be protected from the cold as well as the sun. It changes with age. We are talking about the skin.
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Single-cell Organisms
The Earth is the only planet known to us where liquid water ─ the source of life ─ exists.
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Structure of the Forest
Forests are more than an accumulation of trees. The individual tree is more than a valuable source of wood. From its roots to its crown, it offers habitats to a variety of the most different creatures. The older a tree, the more valuable it becomes to many forest inhabitants. And even in death it is still full of life. If you take a closer look at a forest, you notice that the plants grow to different heights. They form storeys like those of a house. At the top level there are only the big trees. From a bird’s perspective we see that the highest specimens in the forest form a closed canopy. In summer, the treetops resemble big parasols shading the forest floor. Depending upon how much sunlight filters into the depths, this has consequences for the forest vegetation.
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Air and Respiration
The subject of air and respiration offers a variety of starting points for an interdisciplinary approach. This DVD contains essential aspects for teaching pupils in the first years of secondary school. The chemical and physical characteristics of air form the basis for understanding many everyday phenomena, ranging from the development of wind and air pressure to high pressure and low pressure areas in the atmosphere. Last but not least, the foundations for a closer examination of respira- tion are laid. The fundamental phenomenon of respiration is shown from a functional point of view with the help of impressive ani- mations. Different respiratory organs are compared to each other and the basic principle of respiration is explained. The respiratory movements, the path of respiratory air and gas exchange are main points in the “Respiration with Humans” chapter. As a special feature, in its ROM part this DVD offers material for a learning circle dedicated to this subject. Here, many aspects are treated again in a way that pupils can find out facts by themselves with the help of suitable experiments and tasks.
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Endangered Rainforest
The small proportion of about 7% of the entire surface of the earth covered by rainforest is of global significance from various perspectives. The survival of tropical rainforests has been on the agenda of all conservationist organisations for decades. But in spite of all their endeavours and the many political promises made, more hectares of rainforest are destroyed every day than ever before.
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Wadden Sea
Wadden Seas are parts of seas or landscapes on the coast respectively. Characteristic of these landscapes is that Wadden Seas are particularly exposed to the tides. There are many Wadden Seas in the temperate zones all over the world. The sea accessible by wading is usually flooded twice a day during high tide. The areas drying out at low tide are called mudflats. The habitat is susceptible to pollutions, in particular to those caused by man. We deal with the natural landscape between the Dutch Den Helder and the Ho Bay in Denmark that covers 10,000 square kilometres in total. The Wadden Sea along the North Sea: National Park, UNESCO World Heritage natural site and the largest contiguous area of mudflats in the world. The North Sea coast is wilderness on the one hand, work of man on the other hand.
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MedienLB has been producing award-winning school films and interactive modules for the classroom since 2006.
Mücken
Stechmücken, Schnaken, Gnitzen und 40 Mückenfamilien mehr bevölkern unsere Erde. Während sie uns an einem lauen Sommerabend voraussichtlich nur lästig erscheinen, sind sie seit rund 120 Millionen Jahren ein wichtiger Bestandteil unseres Ökosystems.
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Hecht
Der Hecht ist Fisch des Jahres 2016. Er ist einer unserer größten heimischen Raubfische. Sein Maul ist mit messerscharfen Zähnen gespickt.
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Genetic Code Sun
Life on Earth assumes a large variety of shapes. There is plant life and animal life. Protozoa live alongside human beings, ants alongside fish and elephants, a blowball alongside a cactus.
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