Learn about the inhabitants and vegetation of the world's rivers in this innovative curriculum program. Interactive activities and quizzes sharpen vocabulary and knowledge while various writing and poetry activities allow creative expression and demonstration of skills. Consistent with the format of the entire ICC science series, Rivers 2-5 allows teachers to monitor student work, assign custom activities to specific students, check student progress, and print out grades. System Requirements: Macintosh: Power PC, 32 MB RAM, System 7.6 or higher. Windows: PC Pentium, 16 MB RAM (32 rec.), Windows 95/98. 1 Hybrid CD/1 Book Contains: 1 Mac/Windows hybrid CD-ROM, 1 book.