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Climate Change classes 1
UQ 3 May 07 Cars and ozone
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Climate change 2007 IPCC special
UQ 1 Nov Dec 06 Particles in air
Special: Oct. 2006 Communication
Nr 10 Sept. 2006 Africa's emissions
Nr 9 July 06 Air traffic
Special: June 06 Climate summit
Nr 8 April 2006 Ozone & N2 cycle
R: background-ozone & R-NO2
C: The nitrogen cycle
A: Activities
L: Links
I: Information for teachers
Nr 7 March 2006 Climate modeling
Nr 6 Feb. 2006 acid rain
Nr 5 Jan. 2006 oceanic sulfur
Special: Nov 05 Ozzy Ozone
Nr 4 Oct. 2005 light/satellites
Special: Sept 05 Cyclones
Nr 3 Sept. 2005 methane/energy
Special: July 05 Greenhouse Earth
Nr 2 June 2005 forest/aerosols
No 1 May 2005 vegetation/CO2

WEB-Quest -The Nitrogen Cycle

Self-contained learning of students in the context of the nitrogen cycle.


This task has been developed by Elmar Uherek in cooperation with the chemistry teacher Daniel Schiffbauer and was applied in a school class in Overath / Germany (age group 16-17 years). The students follow the instructions of a WEB-Quest and develop a "folder" on the nitrogen cycle in parallel to normal classes over a time span of about 4 weeks with one (of three) lessons per week supported by the teacher.

Model of teaching (3 lessons of chemistry per week):

Time frame:

4 weeks

Topics of regular classes (2 of 3 lessons per week)

the element nitrogen, oxidation numbers, redox equations, nitrogen fixation and nitrogen exchange in soils, nitrgoen release by animals in different forms, nitrogen emissions from human sources and ozone smog, technical synthesis of ammonia and nitric acid

WEB-Quest support
(1 of 3 lessons per week)

Problems and questions (technical approaches, structuring, content related questions) concerning the WEB-Quest are discussed

Self-contained learning of the students (homework, individual work on school computers)

The WEB-Quest is handed over to the students and its tasks are fulfilled in individual work by the students. The result is summarised in a "folder" which is evaluated by the teacher after the four weeks.

The WEB-Quest is offered as a downloadable and online version: Please CLICK HERE!
The online version is helpful for the students since it contains the active links to the material.




last updated 14.05.2006 | © ACCENT - Atmospheric Composition Change 2013