Aktive Filter:Sekundarstufe II xSoziale und medizinische Berufe xArbeit mit Kranken x

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.

Verfügbar als:
Lehrkraftlizenz (edulink): ab 14,50 €
Schullizenz (edulink): 37,00 €
Lizenz Medienzentren (KOL): 290,00 €

Tipp: Auch in Film Flat enthalten

Für Lehrkräfte & SchulenFür Medienzentren

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.

Verfügbar als:
Lehrkraftlizenz (edulink): ab 14,50 €
Schullizenz (edulink): 37,00 €
Lizenz Medienzentren (KOL): 290,00 €

Tipp: Auch in Film Flat enthalten

Für Lehrkräfte & SchulenFür Medienzentren

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.

Verfügbar als:
Lehrkraftlizenz (edulink): ab 14,50 €
Schullizenz (edulink): 37,00 €
Lizenz Medienzentren (KOL): 290,00 €

Tipp: Auch in Film Flat enthalten

Für Lehrkräfte & SchulenFür Medienzentren

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.

Verfügbar als:
Lehrkraftlizenz (edulink): ab 14,50 €
Schullizenz (edulink): 37,00 €
Lizenz Medienzentren (KOL): 290,00 €

Tipp: Auch in Film Flat enthalten

Für Lehrkräfte & SchulenFür Medienzentren

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.

Verfügbar als:
Lehrkraftlizenz (edulink): ab 14,50 €
Schullizenz (edulink): 37,00 €
Lizenz Medienzentren (KOL): 290,00 €

Tipp: Auch in Film Flat enthalten

Für Lehrkräfte & SchulenFür Medienzentren

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.

Verfügbar als:
Lehrkraftlizenz (edulink): ab 14,50 €
Schullizenz (edulink): 37,00 €
Lizenz Medienzentren (KOL): 290,00 €

Tipp: Auch in Film Flat enthalten

Für Lehrkräfte & SchulenFür Medienzentren

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.

Verfügbar als:
Lehrkraftlizenz (edulink): ab 14,50 €
Schullizenz (edulink): 37,00 €
Lizenz Medienzentren (KOL): 290,00 €

Tipp: Auch in Film Flat enthalten

Für Lehrkräfte & SchulenFür Medienzentren

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.

Verfügbar als:
Lehrkraftlizenz (edulink): ab 14,50 €
Schullizenz (edulink): 37,00 €
Lizenz Medienzentren (KOL): 290,00 €

Tipp: Auch in Film Flat enthalten

Für Lehrkräfte & SchulenFür Medienzentren

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.

Verfügbar als:
Lehrkraftlizenz (edulink): ab 14,50 €
Schullizenz (edulink): 37,00 €
Lizenz Medienzentren (KOL): 290,00 €

Tipp: Auch in Film Flat enthalten

Für Lehrkräfte & SchulenFür Medienzentren

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.

Verfügbar als:
Lehrkraftlizenz (edulink): ab 14,50 €
Schullizenz (edulink): 37,00 €
Lizenz Medienzentren (KOL): 290,00 €

Tipp: Auch in Film Flat enthalten

Für Lehrkräfte & SchulenFür Medienzentren

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.

Verfügbar als:
Lehrkraftlizenz (edulink): ab 14,50 €
Schullizenz (edulink): 37,00 €
Lizenz Medienzentren (KOL): 290,00 €

Tipp: Auch in Film Flat enthalten

Für Lehrkräfte & SchulenFür Medienzentren

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.

Verfügbar als:
Lehrkraftlizenz (edulink): ab 14,50 €
Schullizenz (edulink): 37,00 €
Lizenz Medienzentren (KOL): 290,00 €

Tipp: Auch in Film Flat enthalten

Für Lehrkräfte & SchulenFür Medienzentren

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.

Verfügbar als:
Lehrkraftlizenz (edulink): ab 14,50 €
Schullizenz (edulink): 37,00 €
Lizenz Medienzentren (KOL): 290,00 €

Tipp: Auch in Film Flat enthalten

Für Lehrkräfte & SchulenFür Medienzentren

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.

Verfügbar als:
Lehrkraftlizenz (edulink): ab 14,50 €
Schullizenz (edulink): 37,00 €
Lizenz Medienzentren (KOL): 290,00 €

Tipp: Auch in Film Flat enthalten

Für Lehrkräfte & SchulenFür Medienzentren

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.

Verfügbar als:
Lehrkraftlizenz (edulink): ab 14,50 €
Schullizenz (edulink): 37,00 €
Lizenz Medienzentren (KOL): 290,00 €

Tipp: Auch in Film Flat enthalten

Für Lehrkräfte & SchulenFür Medienzentren

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.

Verfügbar als:
Lehrkraftlizenz (edulink): ab 14,50 €
Schullizenz (edulink): 37,00 €
Lizenz Medienzentren (KOL): 290,00 €

Tipp: Auch in Film Flat enthalten

Für Lehrkräfte & SchulenFür Medienzentren

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.

Verfügbar als:
Lehrkraftlizenz (edulink): ab 14,50 €
Schullizenz (edulink): 37,00 €
Lizenz Medienzentren (KOL): 290,00 €

Tipp: Auch in Film Flat enthalten

Für Lehrkräfte & SchulenFür Medienzentren

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.

Verfügbar als:
Lehrkraftlizenz (edulink): ab 14,50 €
Schullizenz (edulink): 37,00 €
Lizenz Medienzentren (KOL): 290,00 €

Tipp: Auch in Film Flat enthalten

Für Lehrkräfte & SchulenFür Medienzentren

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.

Verfügbar als:
Lehrkraftlizenz (edulink): ab 14,50 €
Schullizenz (edulink): 37,00 €
Lizenz Medienzentren (KOL): 290,00 €

Tipp: Auch in Film Flat enthalten

Für Lehrkräfte & SchulenFür Medienzentren

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.

Verfügbar als:
Lehrkraftlizenz (edulink): ab 14,50 €
Schullizenz (edulink): 37,00 €
Lizenz Medienzentren (KOL): 290,00 €

Tipp: Auch in Film Flat enthalten

Für Lehrkräfte & SchulenFür Medienzentren

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.

Verfügbar als:
Lehrkraftlizenz (edulink): ab 14,50 €
Schullizenz (edulink): 37,00 €
Lizenz Medienzentren (KOL): 290,00 €

Tipp: Auch in Film Flat enthalten

Für Lehrkräfte & SchulenFür Medienzentren

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.

Verfügbar als:
Lehrkraftlizenz (edulink): ab 14,50 €
Schullizenz (edulink): 37,00 €
Lizenz Medienzentren (KOL): 290,00 €

Tipp: Auch in Film Flat enthalten

Für Lehrkräfte & SchulenFür Medienzentren

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.

Verfügbar als:
Lehrkraftlizenz (edulink): ab 14,50 €
Schullizenz (edulink): 37,00 €
Lizenz Medienzentren (KOL): 290,00 €

Tipp: Auch in Film Flat enthalten

Für Lehrkräfte & SchulenFür Medienzentren

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.

Verfügbar als:
Lehrkraftlizenz (edulink): ab 14,50 €
Schullizenz (edulink): 37,00 €
Lizenz Medienzentren (KOL): 290,00 €

Tipp: Auch in Film Flat enthalten

Für Lehrkräfte & SchulenFür Medienzentren

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.

Verfügbar als:
Lehrkraftlizenz (edulink): ab 14,50 €
Schullizenz (edulink): 37,00 €
Lizenz Medienzentren (KOL): 290,00 €

Tipp: Auch in Film Flat enthalten

Für Lehrkräfte & SchulenFür Medienzentren

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.

Verfügbar als:
Lehrkraftlizenz (edulink): ab 14,50 €
Schullizenz (edulink): 37,00 €
Lizenz Medienzentren (KOL): 290,00 €

Tipp: Auch in Film Flat enthalten

Für Lehrkräfte & SchulenFür Medienzentren

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.

Verfügbar als:
Lehrkraftlizenz (edulink): ab 14,50 €
Schullizenz (edulink): 37,00 €
Lizenz Medienzentren (KOL): 290,00 €

Tipp: Auch in Film Flat enthalten

Für Lehrkräfte & SchulenFür Medienzentren

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.

Verfügbar als:
Lehrkraftlizenz (edulink): ab 14,50 €
Schullizenz (edulink): 37,00 €
Lizenz Medienzentren (KOL): 290,00 €

Tipp: Auch in Film Flat enthalten

Für Lehrkräfte & SchulenFür Medienzentren

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.

Verfügbar als:
Lehrkraftlizenz (edulink): ab 14,50 €
Schullizenz (edulink): 37,00 €
Lizenz Medienzentren (KOL): 290,00 €

Tipp: Auch in Film Flat enthalten

Für Lehrkräfte & SchulenFür Medienzentren

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.

Verfügbar als:
Lehrkraftlizenz (edulink): ab 14,50 €
Schullizenz (edulink): 37,00 €
Lizenz Medienzentren (KOL): 290,00 €

Tipp: Auch in Film Flat enthalten

Für Lehrkräfte & SchulenFür Medienzentren