eScience is a great follow-up to the RealScience4Kids program. The content for the high school chemistry lab isn't too difficult for my 10-12 yo students who have already mastered RealScience and Cliff's StudySolver Chemistry.

http://www.esciencelabs.com/

http://www.amazon.com/CliffsStudySo...ooks&qid=1268724114&sr=1-1-spell

Daa'iyah Na'im
Director/Head of School
The AGVI Academy for Gifted Youth
http://AGVIgifted.org