I started this sight a couple of years ago to help deliver the key stage two science curriculum- at the time I couldn't find what needed on the net so decided it might be quicker to develop my own materials.
"http://www.cosgrove-taylor.freeserve.co.uk/science/ScienceZone.html"
Hope it is of use to others.
Feedback is always welcome.
ps.
the url of this site has now changed to
"http://www.acocksgreen.bham.sch.uk/sciencezone/science/ScienceZone.html"
If you link to this site please amend any links as needed- Thanks