Hand washing with soap
Interaktiv
Interactive graphic:
Hand washing with soap is shown in three steps. The microscopic processes during the washing process are illustrated in an animation.
Medientyp:
Interaktiv (2,6 MByte)
Letzte Aktualisierung:
25.06.2021
Lizenz:
Dieses Medium steht unter einer CC BY-SA 4.0 international Lizenz.
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Dieses Medium steht unter einer CC BY-SA 4.0 international Lizenz.
Was bedeutet das?
So verweisen Sie auf das Medium
Medienpaket:
Beschreibung:
If you wash your hands with water alone, the dirt is not removed well, if at all (step 1). When you use soap, the dirt particles are broken down, which alters their adhesion to your skin (step 2). With (preferably warm) water, the dirt can then be easily rinsed off (step 3). It is best if you rub your hands while rinsing them.
At the end, the “Details” button can be clicked to show an animated microscopic view of the processes that occur during hand washing with soap. The animation shows how the anionic surfactants contained in the soap act on a dirty spot: The dirt is “broken up” and the individual dirt particles are surrounded by the surfactants.
At the end, the “Details” button can be clicked to show an animated microscopic view of the processes that occur during hand washing with soap. The animation shows how the anionic surfactants contained in the soap act on a dirty spot: The dirt is “broken up” and the individual dirt particles are surrounded by the surfactants.
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Diesem Medium sind keine weiteren Medien zugeordnet.
Lernobjekttyp:
Interactive graphic
Fächer:
Biology; Chemistry
Klassenstufen:
Grade 5 to 6; Grade 7 to 9; Grade 10 to 13
Schultypen:
Middle/high school
Stichworte:
Hygiene; Tensides
Bibliographie:
Siemens Stiftung Media Portal
Urheber/Produzent:
MediaHouse GmbH
Rechteinhaber:
© Siemens Stiftung 2020