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Socrates
503635-LLP-1-2009-1-DE-COMENIUS-CMP
This project has been funded with support from the European Commission. This publication reflects the views only of the author, and the Commission cannot be held responsible for any use which may be made of the information contained therein.
Light bulbs Light bulbs
The comparison of conventional and energy saving light bulbs
How can individuals contribute towards the needs of society?
 Age of students 
10
Why have traditional light bulbs been abolished by the EU?
In Germany, as in many other European countries, conventional light bulbs are to be abolished. From 2009 to 2012 conventional light bulbs will vanish from shops in stages, starting with the most powerful ones. This task aims to provide students with opportunities to discover why the EU introduced this change whilst exploring relevant mathematical and scientific content.

Mathematics
Science
Proportionality
Working with variables
Modelling
Linear equations
Simultaneous equations
Efficiency
Production of light
Light spectrum
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Worksheets
Lightbulbs
Applet
 
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