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Das Thema Klimawandel beschäftigt Schüler in vielen Fächern. Der Film erklärt den Treibhauseffekt und zeigt, was Treibhausgase sind. Fossile Energieträger werden den erneuerbaren gegenübergestellt, und die Klimapolitik wird betrachtet. Der Film regt zur Diskussion, zum Nachdenken und zum Handeln an.
Dieser Animationsfilm beleuchtet auf leicht verständliche und anschauliche Weise die Anordnung der ersten 18 Atome. Ihre Elektronen, Neutronen und Protonen werden untersucht und ihre Beziehungen zueinander betrachtet. Die einzelnen chemischen Elemente erhalten alle einen passenden Charakter.
Um Metalle zu gewinnen, müssen Redoxreaktionen durchgeführt werden. Der Film zeigt die Reaktivität der unterschiedlichen Metalle und gibt Beispiele mit der Gewinnung von Kupfer, Aluminium und Zink. Mit Formeln, Animationen, Filmaufnahmen, Bildern und Grafiken wird der Vorgang verdeutlicht.
Synthetic fibers are made from petroleum and natural gas. This video takes a look at organic and synthetic molecule chains as well as thermoplastic and duroplastic materials, explains the difference between monomers and polymers and gives a brief overview over the history of synthetic fibers like Nylon.
The natural limestone cycle: Carbonated water flows over limestone, the calcium carbonate reacts with the carbonic acid and forms calcium hydrogen carbonate. When this water evaporites, the mixture of dissolved carbon dioxide, carbonic acid and calcium hydrogen carbonate turns back into calcium carbonate and carbon dioxide.
This film is about the technical limestone cycle. Limestone is mined and processed industrially. Carbon dioxide bound in limestone is dissolved and forms calcium oxide. When water is added, calcium carbonate forms in an exothermal reaction. It reacts with carbon dioxide in the air, forming calcium carbonate again.
Iron occurs naturally as mineral iron core. Before it can be used in the industry, it must first be processed into iron or steel. The film explains how blast furnaces are constructed and what chemical processes take place inside them before steel or alloys are finally produced with the addition of other metals.
In neutralization reactions, the pH values of acids and bases cancel each other out. The film shows this using the reaction of hydrochloric acid and caustic soda as an example. The products are described, the titration procedure and the use of neutralization reactions in everyday life are demonstrated.
Nitrogen from the Earth´s atmosphere is converted by bacteria and then processed by plants. Humans and animals ingest these nitrogen compounds in their food. The nitrogen is returned to the soil in animal excrement that contains urea and in rotting plants. This film shows the nitrogen cycle and the Haber-Bosch process.
Each element has a name. The subject of this film is how the naming is done. The names consist of the names of the elements in combination with a multiplication affix and a suffix. This film explains the nomenclature (i.e., the naming system) of inorganic compounds in an entertaining and step-by-step manner.
Oxidation is a chemical reaction. It runs when a candle is burning or a rocket is launched. An old rusted iron fence is actually the result of oxidation. And oxidation reactions even take place in our bodies. In this video, the characteristics of chemical reactions are explained and illustrated through different examples.
It is the most abundant element on Earth and almost all living beings need it - oxygen. Under normal conditions, it is a colourless and odourless gas, occurring as a two-atom molecule. This video explains oxygen´s properties, shows its position in the periodic table, and demonstrates its high reactivity in several experiments.
Die Film Flat bietet über 8.000 rechtssichere Unterrichtsfilme für alle Schulformen, Fächer und Altersklassen. Das Angebot umfasst Lehrfilme, Dokumentationen und Spielfilme. Lehrkräfte können die Videos streamen, herunterladen und mit ihren Schülerinnen und Schülern teilen.
The particle model helps us get an idea of the structure and properties of substances. Sugar, for instance, can appear as rock candy, granulated sugar or icing, and can even be fully dissolved in water - all without a change to its particles. This film visualizes the particle model using different experiments.
Petroleum is one of the most important raw materials. We have been using it for almost 200 years - intensively so for 100. Most of it is used for heating and other energy needs. But petroleum is also indispensable in the production of drugs and other products. Because it is a finite resource, it gets less and less.
Imagining modern life without plastics is almost impossible. We use them in construction, as food packaging, paints, or clothing. Polymerization is the reaction used in their manufacture. This video takes a closer look at how monomers are combined to form polymers and gives a brief overview over the history of plastics.
A redox reaction happens when oxidation and reduction take place simultaneously. Redox reactions are necessary to extract metals like iron or copper. This video explains what oxidizing agents and reducing agents are, why some metals don´t easily react with oxygen, and uses experiments to demonstrate redox reactions.
Metals that quickly release electrons, electron donors, are called non-precious. Electron acceptors, i.e., metals that release only very few or no electrons at all, are precious. Metals can be put into an order, the electrochemical series, according to the readiness with which they release electrons.
This video takes a closer look at iodine, an element in the halogen family. At room temperature, iodine has a metallic sheen and sublimes to a purple vapour as soon as it is just lightly heated up, earning it its name ("ioiedis" means "violet" in Greek). Iodine is essential for making thyroid hormones.
This film is about the separation methods that can be used to split mixtures into their different components. It explains the separation methods decantation, sedimentation, sink-float separation, centrifugation, picking, filtration, evaporation, distillation, adsorption, extraction, chromatography, and combinations thereof.
Silver is considered to be the second most precious metal after gold. Silver is a brilliant white precious metal and with a density of 10.4 g/cm³, it is one of the heavy metals. Of all metals, it is the most reflective and absorbent of light. The film presents the properties of silver and how it reacts with other substances.
The simplest compounds in organic chemistry are the hydrocarbons. The film introduces the first alkanes (saturated hydrocarbons) and alkenes (unsaturated hydrocarbons) and explains their differences and properties. The substances can occur in many variants, which have correspondingly different properties.
We encounter sodium in various forms in many places in everyday life, including the kitchen. The film introduces sodium and sodium hydroxide, points out their differences, and demonstrates their material properties by means of experiments. The very different uses of the reactive element are also shown.
There are different groups of substances to which substances are assigned according to their characteristic properties. The film shows what these properties are, namely the state of aggregation, the melting or boiling temperature, metallic sheen, hardness, density, solubility and finally conductivity.
Sulfur was already used 5000 years before Christ to bleach textiles and as a disinfectant. As one of the most reactive elements, sulfur consists of atoms arranged in a ring. The video introduces the different forms of sulfur and shows in several experiments how it behaves and reacts with other elements.
For a long time, it was considered certain that organic substances could not be produced from inorganic ones. The mixture of potassium cyanate and ammonium sulphate, which produces organic urea, disproved this thesis. The film shows the experiment including the proof and explains the many uses of urea.
Titration is used for the exact measurement of amounts and is a part of quantitative analytical chemistry. The most important instrument in titration is the burette, a glass tube with a scale. With its help, the concentration of a sample solution can be determined by adding a precise amount of a known standard solution.
A water molecule, one of the most important solvents, is made up of two hydrogen and one oxygen atom. Due to the position of the atoms, the electrical charge in the molecule is asymmetrical. The hydrogen molecule has an electrical plus and negative pole. The film shows what water´s property as a solvent is all about.
Topic of this film is the reaction of water with different substance groups, acidic and alkaline solutions. Substances that give off protons when they react with water are called acids, and substances that take up protons in a reaction with water are called bases. Gaseous acids and bases are often extremely soluble in water.
White deposits on water taps and scale in kettles are the result of hard water. Water hardness is a measure of the concentration of calcium and magnesium ions in water.
This film shows how water hardness is measured and which consequences the hardness of water has. Also methods for softening water are shown.
The film gives an overview of the material properties of thermal and electrical conductivity. Examples and experiments are used to explain how well heat and electricity are passed on through various solid and liquid substances. In this context, the video explains the concept of electrical resistance.
To find out whether a liquid is acidic or alkaline, indicators are used to measure pH levels. The pH scale ranges from 0 (extremely acidic) to 14 (extremely alkaline). Pure water sits in the middle of the scale with a pH of 7. Using various experiments, this film shows how to measure the pH levels of aqueous solutions.
Materials that by their mere presence can enable or speed up reactions that would either not even happen at all or take much longer to run without them are called catalysts. Catalysts are not involved in those reactions and come out untouched. They lower the activation energy and therefore speed up the reaction rate.
Mit der kinetischen Gastheorie können die Eigenschaften der Gase aus den Eigenschaften und Bewegungen der Atome bzw. Moleküle abgeleitet werden. Der Film betrachtet das Teilchenmodell und die kinetische Energie und erklärt die Theorie anhand von Beispielen mit Experimenten, Animationen und Aufnahmen.
Radionuklide und Isotope spielen vor allem in der Medizin und der Industrie eine große Rolle. Der Film beleuchtet das Periodensystem und die Radioaktivität sowie die Strahlungsarten. Die verschiedenen Einsatzmöglichkeiten von Radioaktivität werden betrachtet und Schutzmaßnahmen vorgestellt.
In den Naturwissenschaften werden Gemische getrennt. In der Physik ist dies durch Sieben und Filtern, Schwerkrafttrennverfahren und Destillation möglich, während in der Chemie Kristallisation, Raffination und Chromatografie Einsatz finden. In der Biologie geht es um die Abwasserbehandlung.
The air we breathe consists of nitrogen, oxygen, very little carbon dioxide and numerous other substances. The film explains what its composition is and how people have explored it over time. Another topic of the video are the five different layers that make up the vital atmosphere around the earth.
The first group of the periodic table consists of hydrogen and the six alkali metals lithium, sodium, potassium, rubidium, caesium, and francium. With only one electron in their outer shell, alkali metals are very reactive. This film explains some of the most important properties of the alkali metals.
This film is about the organic compounds we call alcohols. Alcohol is not a human invention - it occurs naturally wherever yeast spores find the right conditions to reproduce. The video shows the molecular structure of alcohols, the differences between them, explains their properties and uses and looks at their production.
The six alkaline earth metals - beryllium, magnesium, calcium, strontium, barium, and radium - rank among the most reactive elements, coming in second after alkaline metals. They don´t occur in their elemental state. This video shows the properties and reactions of alkaline earth metals in different experiments.
With a density of only around 2.7 g/cm^3, aluminium is one of the lightest metals. It is the third most abundant element in Earth's crust, is very soft, has a low melting point and excellent conductivity, making it one of the most versatile materials used in construction, packaging, and electrical engineering.
As an alternative to petroleum, the possibilities of biomass are now being explored. The film presents biomass gasification and energy generation from biomass, explains how they work and names the advantages, but also the disadvantages of the new processes, which have not been sufficiently researched for a long time.
Carbon can form multiple bonds with itself and other substances, making it one of the most versatile elements. This becomes particularly apparent in organic carbon compounds. Examples include the carbohydrate group but also petroleum, natural gas and coal, which are made up of the remains of plants and animals.
The global carbon cycle - the process by which carbon gets moved around between Earth´s atmosphere and biosphere - can be divided up into a geological and a biological carbon cycle. This video explains both of them and gives insight into the risks to Earth´s equilibrium brought on by burning fossil fuels.
Chemical equilibriums occur when reversible reactions take place in a closed system. Most chemical reactions are not only unidirectional, but are rather reversible. Chemical and dynamic equilibrium are demonstrated with various experiments. The equilibrium constant is explained and the law of mass action described.
Das Mol wird als Basiseinheit für Stoffmengen vorgestellt. Der Film befasst sich mit Stoff- und Energiemengen, erklärt die Avogadrosche Zahl, erklärt Reaktionsgleichungen und gibt Lösungsbeispiele. Auch die Proportionen für chemische Reaktionen von Gasen und Flüssigkeiten werden beleuchtet.
The substances dealt with in chemistry almost never occur in pure form naturally. Even substances that we consider to be "pure" contain admixtures of other substances. Topics of this film are the different mixtures of solid, liquid and gaseous substances and their different types of heterogeneous and homogeneous mixtures.
Chemical reactions take different forms: It pops or bubbles, but sometimes a reaction is barely visible. The film shows the common features of chemical reactions: Starting material and product, exothermic and endothermic reactions as well as the most important influencing variables of chemical reactions.
Copper is one of the metals humans have been using the longest. In nature, it can be found in its pure form as nuggets, and humans began using it 10,000 years ago. Copper can be worked easily when smelted and cast. Using various experiments, this film demonstrates copper´s properties and its reactions with other substances.
We see crystals everywhere in nature. They fascinate us with their shape and repetition - but how are they formed? This video looks at the various types of crystals, shows their formation in experiments and explains important terms and concepts such as the crystal lattice, quasi crystals and the law of constant angles.
With fossil fuels dwindling, finding alternatives to them becomes increasingly important. One way to meet our energy needs without oil and gas is solar power. This film explains how sunlight can be converted into useable energy, what problems there still are with solar power, and takes looks at the history of its discovery.
Electroplating, colloquially known as galvanising, is the electrochemical deposition of metal layers on so-called substrates - for example, coating a piece of metal with a usually very thin layer of a more noble metal. The process is named after the man who discovered it, the Italian doctor Luigi Galvani.
Endothermic reactions consume more energy than they release, whereas the opposite is true for exothermic reactions. Therefore, there are many applications for the latter. The film presents various forms of exothermic reaction and shows how, for example, combustion, thermite reactions and explosions can be used beneficially.
Exothermic chemical reactions give off more energy than they themselves need for their process. The film explains combustion, which is the most important exothermic reaction - we use it to produce heat for example. It is the most commonly used chemical reaction, and it is also the oldest one known to mankind.
Topics of this film are fats and fatty oils. Chemists call them lipids, and they are a key component of our diet. If the substance is solid or semi-solid at room temperature we call it fat, if it is fluid we call it oil. Its correct technical name is "fatty oil" because - from a chemical point of view - there are other oils.
For a fire to occur, three conditions must be met: There must be combustible material, enough oxygen, and a sufficiently high initial temperature to provide the necessary activation energy. The video shows how firefighters deal with this so-called "burning triangle" and gives an overview over the best extinguishing methods.
The atmospheric greenhouse effect - a warming of the Earth´s surface by heat trapped by the sun - is what made our planet habitable in the first place. This video explains in detail how this effect works and identifies the differences between the natural and the threatening man-made greenhouse effect.
Due to its properties, the element zinc is an important working metal and in combination with other metals plays an important in metalworking. The film presents zinc´s properties and how it reacts with acids and bases. It also looks into the role of zinc in electrochemistry and in the human body´s metabolic processes.