Volcanoes [With Spiral Book W/ Experiments]

-- Interfact combines the lively design of an excellent reference book with the challenge of an activity-packed CD-Rom to help kids learn all about their favorite subjects.
-- Book features detailed facts, photographs, illustrations, glossary and index.
-- Multimedia disc contains up to 15 hours of activities, games and on-screen adventures.
-- Each disc has seven interactive features with up to 15 hours of playing time -- experiments, quizzes, games, explorations.
-- The package is compact, ring-bound for ease of use and conveniently stores the disc in a plastic wallet securely bound to the book.