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Lerneinheit Chemie 8 – Kalk
In unserem Arbeitsheft „Lerneinheit Chemie 8 – Kalk“ finden Sie 10 interaktive und didaktisch aufbereitete Aufgaben zum Thema Kalk.
Über die Beschreibung der Entstehung und Funktion von Kalk, geben die Aufgaben Hinweis auf seinen Einsatz in der Industrie oder auch im Alltag.
Unterschiedliche Aufgabentypen dienen der Wissensvermittlung, Wissensvertiefung und der Lernstandabfrage.
Die Aufgaben sind mit H5P erstellt und können ohne zusätzliche Software angewandt werden.
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Included Tasks
- Kalk - Seine Funktionen
- Kalk - Von der Entstehung bis zur Verwitterung
- Kalk - Abbau und Gewinnung
- Kalk - Einsatz in der Industrie
- Kalk im Alltag
- Kalk - Finde die Bildpaare
- Kalk - Schulversuche
- Kalk - Suchsel
- Kalk - Kreuzworträtsel
- Kalk - Teste dein Wissen
Curriculum-centred and oriented towards educational standards
Matching
Biogas
In our modern lives, we are dependent on a regular supply of energy.
C, CO2 and Associates in Everyday Life
All organic matter contains carbon. Coal is deposited in the Earth's interior. It developed about 300 million years ago from plants in a geological period which is also called Carboniferous. During the combustion of organic matter, carbon turns into the gas carbon dioxide. Dissolved in water, it becomes the so-called carbonic acid. Carbon dioxide is an incombustible, colourless and odourless gas that is easily dissolved in water. With various metal oxides or hydroxides it forms two types of salts: the carbonates and the hydrogen carbonates. As calcium carbonate it is contained in natural products such as chalk and egg shells. Specific forms of carbon, called modifications, are graphite and also the particularly valuable diamond.
Acids and Bases
We can find acids and bases in every supermarket, some of them in our food, others in cleaning agents. In everyday products, acids and bases as well as acidic and alkaline reacting salts have extremely different functions. In food, acids are either present or added as flavouring agents such as citric acid, tartaric acid and acetic acid, as antioxidants such as ascorbic acid or generally as acidifiers, sequestrants (citric acid and tartaric acid) and preservatives (acetic acid).