ISBN0078236940

After carefully reviewing this book and actually using it, I can not believe that the reading level for it is 7th grade. Although visually appealing, the text itself is difficult for many college educated adults to understand. Pronunciations for scientific terms are not indicated in the context of the text and definitions are vague, they are not explained (?) in terms that the average middle school student is able to understand. It will certainly turn off the average and reluctant readers at the middle school level. Certainly there is something out there that is at a more appropriate level for middle schoolers and will not discourage them from reading their textbook. It does not hold the readers attention. School districts need to look carefully when considering the purchasing of this book in an era when budgets are constricted. Signed, a certified librarian, parent and taxpayer.

Just wanted to agree wholeheartedly with the other one star review for this book. Book is comprehensive in scope but is REALLY difficult to read and comprehend! Not written at all at the level it is designed to educate.