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Solutions, Emulsions and Mixtures of Substances
Properties and Uses
Be it milk in a cereal bowl, tea in a glass or the air around us. We constantly come across mixtures of substances in our everyday lives. As the name suggests, they are mixtures – mixtures of several so-called pure substances. They are, for instance, the chemical elements listed in the periodic table. These are substances that only consist of one single element, for example sulphur. But there are also pure chemical compounds such as distilled water or sodium. If you solve sodium or other substances in regular water, the result is a mixture of substances. A mixture is formed from different chemical compounds. With mixtures of substances like this, the source substances remain in the mixture as individual units – even if you cannot distinguish them with the naked eye. Nevertheless, they can be divided into their individual components with the help of various separation methods.
Play trailerCurriculum-centred and oriented towards educational standards
Matching
Podcasting
Today, the use of new media has become a matter of course not only in everyday life – schools and teaching, too, benefit from the new technologies and methods, which support active and independent learning. Especially in computer science, ethics and language courses but also in all other subjects, modern media are a valuable pedagogic and didactic asset. This DVD uses the example of podcasts to demonstrate how the possibilities opened up by new media can be applied in the classroom and how the pupils can be taught to handle them in a competent and target-oriented manner. The film is aimed at supporting the use of podcasts at school and encourages making them. This also requires the ability to find information on the Internet and assess it. The film informs on the functionality of podcasts and technical background as well as on the teaching and learning possibilities offered by podcasts – ranging from specific contents to superordinate learning targets such as the advancement of creativity and team spirit. The DVD is a useful support for teachers applying new media and wishing to show their pupils how to handle Running Time: 20:29 ms them in a sensible way.
Rights and Obligations
Three girls of different ages: Anna is 17, Paula 15 and Lena 13. Before the law, their respective ages have consequences – because children and adolescents have different rights and also obligations.