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Carbohydrates
The term carbohydrate or saccharide is a collective name for all substances with the chemical formula Cn(H2O)n. Carbohydrates are the basis of nutrition. They are part of our diet as starch, glucose (grape sugar), fructose (fruit sugar), lactose (milk sugar) and saccharose (beet, cane or table sugar). Important suppliers of carbohydrates are potatoes and cereals such as rice, wheat, maize, millet, rye and oats. The various carbohydrates in our foods are introduced to the pupils. The characteristics of polysaccharides, disaccharides and monosaccharides are explained to them and in which foods these substances occur and how they are structured. In addition, the different origins of starch, starch degradation products, gelling agents as well as sugar alcohols in confectionery are dealt with. The DVD shows how various substances can be detected with the help of chemical processes. Together with the extensive accompanying material the DVD is ideally suited for use in the classroom.
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Solutions, Emulsions and Mixtures of Substances
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.
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Noble Gases
Xenon, Helium, Neon, Argon, Krypton and the radioactive Radon belong to the noble gases. These form the family of noble gases as the elements of the eighth group of the periodic table. All of them are colourless and odourless, non-inflammable and non-toxic. Their most striking chemical property is their inertness. This can be explained by their electron arrangement, termed noble gas configuration and represents a particularly stable and therefore low-energy state. The noble gases are to be found in scant amounts in our air from which they are also distilled. Helium is mainly extracted from natural gas. In everyday life, we encounter noble gases for example as shielding, filling or buoyant gases and in fluorescent tubes. The shell model describes the structure of the atoms. It is based on the distribution of electrons in restricted areas at a fixed distance around the core of the atom.
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Periodic Table
With the help of the periodic system chemists can predict properties of chemical elements and derive chemical reactions. But you need not be a chemist to understand the periodic system.
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Fascination Lime
Many products used in everyday life are impossible without lime. These are, among others, glass, sugar, paper as well as pharmaceutical and cosmetic products. The raw material is also indispensable in the construction materials industry. Iron and steel producers need limestone, in environmental protection it is used, for example, for air cleaning and drinking water purification.
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Elemente im PSE
In unserem Arbeitsheft Chemie 6-8, Vol. 1 – Elemente im PSE finden Sie 50 interaktive und didaktisch aufbereitete Aufgaben.
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Redoxreaktionen
In unserem Arbeitsheft Chemie 7, Vol. 1 – Redoxreaktionen finden Sie 50 interaktive und didaktisch aufbereitete Aufgaben.
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Chemie des Alltags
In unserem Arbeitsheft Chemie 8, Vol. 1 – Chemie des Alltags finden Sie 50 interaktive und didaktisch aufbereitete Aufgaben.
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MedienLB has been producing award-winning school films and interactive modules for the classroom since 2006.
Plastik
In 14 interaktiven Modulen wird das Thema Plastik vermittelt und anschließend abgefragt.
Aluminium
In 10 interaktiven Modulen und in interaktiven Videos wird Wissen zum Thema Aluminium vermittelt und abgefragt.
Eigenschaften von Stoffen
In 10 interaktiven Modulen und in interaktiven Videos wird Wissen zu den Themen Stoffe und ihre Eigenschaften, Gemische, Gemenge und Lösungen vermittelt und abgefragt.