Did you know that a sword fish can swim up to 62 miles per hour? Or, that a snail has teeth? Explorium- Ocean for Kids combines a kid-friendly encyclopedia about ocean plants and animals, an undersea adventure, and six mini-games. With so many different activities, it will keep your child (ages 4 to 8) entertained for hours. We like this app so much that we made it our latest Top Pick for Fun Educational Apps.