Three useful websites to support science have been emailed to me. One is for fun and tests reaction times on tranquilising sheep.
http://www.bbc.co.uk/science/humanbody/sleep/sheep/reaction_version5.swf
The other two are more educational.
http://www.bbc.co.uk/science/humanbody/body/index_interactivebody.shtml
Science Revision material for KS2 Sats http://www.lgfl.net/lgfl/leas/southwark/accounts/subjects/science/web/Resources/KS2%20SATs%20Revision%20Book/
Don't forget for more Science websites visit the Science Zone.
http://www.kented.org.uk/ngfl/subjects/science/
Andy