Chem4Kids
http://www.chem4kids.com/
This site speaks directly to the young scientist. It's an excellent tutorial for children learning scientific concepts and how math is integrated into science. There are no hands-on activities and the student has to have genuine interest in topic because its encyclopedic in its approach.
Reading and Science
http://www.wested.org/
WestEd, a Regional Educational Laboratory
organization dedicated to educational research and professional
development, offers the latest publications on making science available to ELs and a myriad of research reports on Science education.
Science and Literacy
http://www.aaas.org/education/
The American Association for the Advancement of Science
project 2061 advocates the necessity of teaching science
literacy, and science and literacy.