Science Textbook on line http://my.hrw.com
(Sample link) National Geographic for Kids http://www.nationalgeographic.com/kids/
(Sample link) Fun activities - by girls....for girls. http://www.missoandfriends.com/
NASA for kids http://www.nasa.gov/audience/forstudents/5-8/features/index.html
SOLpass http://www.solpass.org/middleschool.htm