Gr 4-8-In both titles, an introduction explains the new and emerging areas of science and technology. Divided into three sections, Bio Tech covers medical horizons, biology, and bio-tech living; each chapter delves into more specific aspects of each area, explaining cells, artificial body parts, robots, foods, etc. Internet begins with a brief history of its development, various aspects of the Web, commerce and communication, and information. Copious bright pictures enhance the texts. Sidebars, captions, illustrations, and diagrams appear on each colorful page. These eye-appealing titles provide basic introductory information and are sure to spark many interesting discussions in the classroom or at home.-Susan Shaver, Hemingford Public Schools, NE Copyright 2002 Cahners Business Information.