Try  Rayslearning Webquests:  http://www.rayslearning.com/scwquest.htm

" A webquest is an enquiry-oriented activity using at least some internet resources. Rather than simply asking pupils to research a word or topic and trawling through a mountain of mostly irrelevant sites the WebQuest provides directed learning using a number of sites as sources of information.

There are hundreds of ready made webquests online, made by teachers all over the world, for almost every subject and ready for use by teachers everywhere. The hard work of designing an activity and finding suitable weblinks has already been doneand they can even be edited to suit your particular needs.

Most Webquests are not single lesson activities - they are more project type, extended, motivational activities, often giving pupils insights into how real scientists work. "     .........Rayslearning