The Association for Science Education
http://www.issen.org.uk/
Describes activities for special education
needs in science education.
Edbydesign.com
http://www.edbydesign.com
Activities for children with
disabilities, including art, learning computers, math
development, language, basic science skills, and more.
LD
Online Teachers Homepage
http://www.ldonline.org/
Extensive resource for Special needs teachers including
strategies and techniques and more; perform a search using "science" as the keyword.