The links below refer mainly to biology.
The Cells Alive! website is interactive, graphically appealing and a MUST teaching tool. It invites pupils' hands on participation both in class and as self-study. The graphics facilitate teaching in “co-presenza”. Brilliant!
<p<
http://www.bbc.co.uk/science/humanbody/.Interactive games/exercises on the human body.
http://www.accessexcellence.org/RC/VL/xrays/ The living skeleton shows labelled and unlabelled x-rays of every bone in the body, with/without fractures and diseases. One clicks on the part of the body to examine.
http://www.meddean.luc.edu/lumen/MedEd/GrossAnatomy/dissector/muscles/muscles.html Similar to the above, but refers to muscles, nerves, their function and position.
http://www.pbs.org/wnet/redgold/index.html Everything about the blood.
http://www.fi.edu/learn/heart/index.html All aspects of the heart, class room activities, related images.
http://evolution.berkeley.edu/evolibrary/teach/912lounge.php The University of California's museum of paleontology site has a treasure of exhibits and related websites, many of which provide lesson plans, resources and advice for secondary school teachers. Brilliant! See also http://evolution.berkeley.edu/ and http://evolution.berkeley.edu/evolibrary/teach/912lounge.php.