Most of us have probably ordered goods on the Internet at some point since online trade is perpetually booming. Amazon is one of the largest Internet retailers in the world. One click on the order button triggers a whole chain of transport services, most of which are invisible to us, apart from the DHL delivery service, which brings the ordered articles to our homes. Earth is conducted outward as if through a valve. Volcanoes are formed where the hot viscous rock from the interior of the earth reaches the outside. Geysers and hot springs are formed because water is heated underground by volcanic activity and then makes its way to the surface through a maze of cracks and crevices. In combination with the extensive additional material (worksheets, interactive tasks), this medium can be used excellently in the classroom. In the detailed data section of the DVD 91 pages of teaching and accompanying material, of which: 26 pages of worksheets and supplements with solutions 17 test tasks 10 interactive tasks