- Topics within the Life Balance series focus on maintaining positive mental health overall, rather than just dealing with problems. - Each book ... Show synopsis - Topics within the Life Balance series focus on maintaining positive mental health overall, rather than just dealing with problems. - Each book directly relates to the National Health Education Standards in addition to the Science and Social Studies standards. - Series has a fresh, sophisticated design and 2-color interior with illustrations. - Each book includes features and sidebars that highlight additional information of interest. National Science Standards, Grades 5-8 - Life Science: III. Content Standard C - Disease is a breakdown in structures of function of an organism. Some diseases are the result of intrinsic failures of the system. Others are the result of damage by infection of other organisms. - Science as Inquiry: I. Content Standard A - Scientific explanations emphasize evidence, have logically consistent arguments, and use scientific principles, models, and theories. The scientific community accepts and uses such explanations until displaced by better scientific ones.