For further information about topics covered in 'Refraction' click on the following links:
BBC KS3 Bitesize - Light
The BBC website gives a good introduction to light, with a separate section on refraction.
http://www.bbc.co.uk/schools/ks3bitesize/
science/physics/light_intro.shtml
How Stuff Works
For more detail, but still a clear explanation, have a look at How Stuff Works - also with a separate section on refraction.
http://science.howstuffworks.com/light.htm
Teacher Planet
Here you will find resources, lesson plans and experiments for teachers to use in class.
Source: NESTA
Date: 10 February 2008
Subject: Physics
Suitability: Adults/Parents Anyone Over 11s Over 14s Over 16s Over 7s Professionals Teachers