Titel/Inhalt

Inhalt
- C2 Hygiene (teacher instructions)
The teacher instructions include information on the following: the main question, relevance to the curriculum, skills, notes on conducting the subexperiments, the research group, further research assignments, the reference to technology and the reference to values.
The experiment comprises three subexperiments:
• Hand washing
• Cooling without electricity
• Acid on the teeth
Diseases are often transmitted by bacteria that have settled on our hands, in our mouths, or in spoiled foods. However, as long as we practice good hygiene, we can protect ourselves from disease and thus preserve our health. But what does a sufficient level of hygiene mean for our hands, food, and mouths?

- C2.1 Hand washing (student instructions)
Detailed instructions and questions for students on conducting the subexperiment
- C2.2 Cooling without electricity (student instructions)
Detailed instructions and questions for students on conducting the subexperiment
- C2.2 Cooling without electricity – Tracking down technology (worksheet)
Technical applications as a supplement to subexperiment 2
- C2.2 Cooling without electricity – Tracking down technology (answer sheet)
Answer sheet for the technology module in the experimentation instructions of the same name
- C2.2 Cooling without electricity – Tracking down technology (information sheet)
This document explains the use and function of a refrigerator and an air conditioner in a commuter train.
- C2.3 Acid on the teeth (student instructions)
Detailed instructions and questions for students on conducting the subexperiment

- Worksheet for Experimento | 8+ (blank template)
The students can use this blank template during the experiment to record their results and observations.
- Refrigerator – inside (photo)
Refrigerator filled with food, door open.
- Refrigerator – back (photo)
Refrigerator from the back. The pipes can be seen for the coolant and the “cooling fin” as well as for the compressor (below).
- Air-conditioning system (photo)
An air-conditioning system on the roof of a commuter train.
- Safety information for Experimento | 8+ (poster)

- Educational-didactic introduction – Experimento | 8+
This document explains the basic educational concept of Experimento | 8+ and the methodology behind the worksheet.
- Safety information on the topic of health – Experimento | 8+
The teacher should carefully read the safety information before the experiment is conducted and discuss it with the students!

Serienbeschreibung
Die Serie stellt Materialien aus dem Medienportal der Siemens Stiftung zur Verfügung und gibt somit auch einen Überblick über die dort vorhandenen Medienpakete. Zur Nutzung der über den externen Link erreichbaren OER-Materialien bedarf es keiner Registrierung. Für andere Bereiche des Medienportals der Siemens Stiftung ist eine solche ggf. notwendig.

Anmerkungen

Handhabung
Notes:
- German safety regulations were observed for all experiments. For this reason, you should observe the safety regulations valid in your country and state.
- The instructions are taken from Experimento, the educational program of Siemens Stiftung. For more information see “Experimento: Make the classroom your laboratory” in the media portal.
- All materials mentioned in the instructions will have to be purchased directly from commercial sources.