... and more

... and more: Different separation processes

1.1 Task:
You have now discovered different speration processes. What are all the possibilies to seperate materials? Choose, with a class friend, a seperation process and find information about it. Prepare a short presentation of your knowledge to your class.

Sources:

Overview:
Scribd.com: Methods of seperating mixtures
Filtering:
Eschooltoday.com: Filtration Seperation Method
Chromatographie:
Antoine.frostburg.edu: Chromatography
Sediment:
Separating-mixtures.wikispaces.com: Sedimentation
Centrifugation:
Lehntech.com: Centrifugation
Magnetic seperation:
Mine-engineer.com: Magnetic Seperation

... and more: seperation of waste

1.2 Task:
We create every day a huge amount of waste. A part of it is disposed in the incinerators. However, another part reaches the recycling. When properly handelded, some can also procure valuable raw materials, particularly from electronic devices. Search about one of the following questions and collect information. Create an information sheet with your findings and present it to your classmates. The following links and movies will help you in your research.

1. Why is it important and useful to sort out waste and recycle?
Youtube: PPRSydney; MobileMuster - what happens when you recycle your old mobile phones
Youtube: Welt der Wunder; Goldgrube Schrottplatz - Welt der Wunder

Additional question: Why is it important that you take care of your computer, and why is it linked with the tropical forest?
Kids.mongabay.com: What is deforestation?

2. Explain how the electronic devices are disposed of and how valuable raw materials are obtained from it.
Empa.ch: Remigius Nideröst; Sustainable management of secondary raw materials
Youtube: materialsprocessing; E-waste recycling: Giving new life to an old PC
Youtube: Recycle Now; Waste Electronics - How they are recycled

3. How do the different ways of disposal opperate? What are the different
Youtube: CasinosNearDenverCO; E-Waste Recycling Machines -- Trust Sherbrooke OEM E-Waste Recycling Machines
Wikipedia: Magnetic seperation

Who is explore-it

a charitable association
The service agreements with the supporters of explore-it stipulate beginning with the project status that explore-it will become a provider of teaching and learning materials. It was not possible to provide materials and services for sale, being a research and development project of the Schools of Education. For this reason, the association was founded in cooperation with the partners of explore-it. The goal of the association is the promotion of technical understanding and natural sciences for children and youth. The association is exclusively non-profit and is tax-free since February 2010. The explore-it materials are assembled at the ARWO (sheltered workshop for persons with disabilities) in Wettingen in Argovia, Switzerland.

Foundation
To obtain advantage of donor funds and using them for specified purpose, the association created in august 2012 the "explore-it foundation". The aim is to promote understanding and innovation of children and adolescents in science and technology and to support and fund activities of the explore-it association.

a research and development project
explore-it goes back to a spin-off of the University of Teacher Education Valais (PHVS) and the PH of the University of Applied Sciences Northwestern Switzerland (PH FHNW) from 2008.

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