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Halogens
The compounds of halogens are - with the exception of astatine - widespread, can be encountered in nature and are versatile substances. This fact is taken up on this DVD in order to teach the students the chemistry of the halogens by illustrating their special qualities and explaining the correlation of their structure with their chemical properties. In the first part, an overview of the element group of halogens lays emphasis on the common as well as on the distinguishing characteristics of fluorine, chlorine, bromine and iodine. In a second part, the specific properties of fluorine and chlorine are presented. This topic is linked to the students‘ everyday experience (fluorine as a protection against caries, chlorine as a disinfectant, etc.) on the one hand. On the other hand, the DVD presents carefully selected experiments. As a rule, they are of a kind that can only be realized with difficulty, or high expenditure in the chemistry classroom. With the help of these experiments, students are introduced to the chemistry of the halogens in a way that enables them to draw conclusions on the basis of their observations.
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Halogens
The compounds of halogens are - with the exception of astatine - widespread, can be encountered in nature and are versatile substances. This fact is taken up on this DVD in order to teach the students the chemistry of the halogens by illustrating their special qualities and explaining the correlation of their structure with their chemical properties. In the first part, an overview of the element group of halogens lays emphasis on the common as well as on the distinguishing characteristics of fluorine, chlorine, bromine and iodine. In a second part, the specific properties of bromine and iodine are presented. This topic is linked to the students‘ everyday experience on the one hand (bromine as a catalyst for reactolite sunglasses, iodine as an agent in medicine, etc.) on the one hand. As a rule, they are of a kind that can only be realized with difficulty, or high expenditure in the chemistry classroom. With the help of these experiments, students are introduced to the chemistry of the halogens in a way that enables them to draw conclusions on the basis of their observations.
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Hamburg
The history of the city is closely related to the history of its port. As early as the 9th century, a small harbour was mentioned in historical records.
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Hamsters
Hamsters are small rodents that have four sharp incisors. They are related to mice.
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Handelsrouten
Seit Jahrtausenden handeln Menschen mit den verschiedensten Waren. Anfangs geschah dies in einem sehr begrenzten Umfeld, im Laufe der Geschichte wurden für seltene und exotische Handelsgüter allerdings auch weite Wege und gefährliche Reisen in Kauf genommen.
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Hands-on Biology
To perform the experiment with beans you need first of all the seeds, of course. Runner beans are well suited for it. Watch out! Eaten raw, bean seeds are poisonous! For the germination experiments you need one plant pot per experiment. You need a waterproof pen for labelling the pots. Moreover, a watering can and water are required to keep the plant soil moist which is also needed. Some of the plant soil should be dried beforehand. To exclude the light you need a carton, to exclude the air a solid, transparent plastic bag and to exclude the soil cotton wool. In addition, scales, a glass and a protractor are required.
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Hanf
Hanf, auch als Cannabis bekannt, gehört zu den ältesten Kulturpflanzen. Während er heute zumeist als Rauschmittel und mit Begriffen wie Gras, Marihuana oder Hasch assoziiert wird, galt er einst als Heil- und Nahrungsmittel und als Rohstoff zur Papier- und Textilverarbeitung.
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Hansa
Since the 11th century the population in Europe was growing. The reason for it was, among other things, an increase in agricultural production due to a good climate.
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Hänsel und Gretel
Das Märchen „Hänsel und Gretel“ ist eines der bekanntesten Märchen der „Kinder- und Hausmärchen“ der Brüder Grimm.
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MedienLB has been producing award-winning school films and interactive modules for the classroom since 2006.
Hare and Rabbit
How do we distinguish between a hare and a rabbit? At first sight, both look confusingly alike for both have long ears and a stumpy tail.
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Hasstiraden gegen Andersdenkende
"Zeit für Helden – Und was machst Du?" schafft Aufklärung rund um die Themen Diskriminierung, Rassismus, Vorurteile und Zivilcourage.
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Haushaltswissen
Ordnung spart viel Zeit. Hauswirtschaftslehrerin Petra Fuchs gibt sieben hilfreiche Tipps, wie Aufräumen schnell geht und Spaß bringen kann. Dazu kommt das Themenfeld Sicherheit im Haushalt – hier wird auf die wichtigsten Sicherheitsregeln eingegangen, damit Dir beim Schneiden mit dem Messer oder beim Verwenden der Pfanne nichts passiert. Weiteres Haushaltswissen wird aus den Bereichen Reinigen mit verschiedenen Reinigungsmitteln, optimales Waschen mit der Waschmaschine und sicheres Kochen vermittelt. Zum Schluss zeigt der Film noch ein einfaches Rezept mit genauer Anleitung zum Nachkochen.
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