World Book has a reference website called Kids that is especially for young students. The website features image-driven navigation, videos, interactive maps and activities. World Book Kids is accessible from a tablet or iPad and has a customizable background with 200 photographs to choose from.
World Book Kids activities and games include cracking codes, puzzles, making musical instruments, crosswords, sorting, matching and multiple choice quizzes. World of Animals is a tool that helps children research animals, and a translation feature lets them view articles in Spanish or French. A 12-month subscription to World Book Kids costs $29.99 as of 2015.