Students learn how important and ubiquitous silicon is in everyday life. The lesson covers the properties and occurrence of silicon. The second chapter deals with the technical uses of the element and the required purity levels. The third chapter explains the methods for obtaining the necessary purity levels. Finally, the differences between monocrystalline and polycrystalline solar cells are highlighted.

 Subject: Chemistry
 Year group: From 8th grade onwards
 Duration: 90 minutes

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