Hand washing with soap © Siemens Stiftung 2020 CC BY-SA 4.0 international

Hand washing with soap

Interactive

Interactive graphic:
Hand washing with soap is shown in three steps. The microscopic processes during the washing process are illustrated in an animation.

English, German, Spanish (CREA)
Interactive (2.6 MByte)
2021-06-25
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.
There are no other media directly related to this file.
Interactive graphic
Biology; Chemistry
Grade 5 to 6; Grade 7 to 9; Grade 10 to 13
Middle/high school
Hygiene; Tensides
Siemens Stiftung Media Portal
MediaHouse GmbH
© Siemens Stiftung 2020
Stay up-to-date!

About four times a year, we inform you about new media on this portal as well as current studies and events related to OER and STEM.

Media Portal newsletter – register now

About four times a year, we inform you about new media on this portal as well as current studies and events related to OER and STEM.

*Required fields


Language

Liebe Nutzerin, lieber Nutzer,
El Portal de Medios – das spanische Medienportal – ist umgezogen und heißt nun CREA.
Auf CREA finden Sie weiterhin hochwertige Medien für den MINT-Unterricht und vieles mehr.

Dear User,
El Portal de Medios - the Spanish Media Portal - has moved and is now called CREA.
On CREA, you will continue to find high-quality media for STEM education and much more.

Estimado usuario, estimada usuaria,
El Portal de Medios – en español – ha sido trasladado y ahora se llama CREA.
En CREA seguirá encontrando medios de alta calidad para la enseñanza de STEM, y mucho más.

Zu CREA wechseln / Switch to CREA / Cambiar a CREA
CREA - El Portal de Medios para la Enseñanza STEM

Hierbleiben / Stay here / Quédate aquí:
Fenster schließen / Close window / Cerrar ventana