Internet research questions to go with Key stage 3, common entrance and middle school work on Light. This covers the electromagnetic spectrum, lenses and telescopes as well as the speed of light in different mediums. There are also questions on the structure of the eye and the role of different parts of it. The task usually takes 30 to 40 minutes and can be set to do at home, where internet access is available as well as in lessons. Both pdf and word documents available here.