Thousands of science questions engage your child in learning fun. This iQuest expansion cartridge contains chapter material based on 24 textbooks* used in the classroom. Kids pop the cartridge into the iQuest handheld, then follow three easy steps: Scroll to find a textbook*. Select a chapter to study. Play two fast-paced quiz games - complete with audio, animations and scores - to master the chapter material. If kids don't find their textbook, they just select from a list of key age-appropriate topics to let the learning games begin. * Not all textbooks supported. This iQuest cartridge teaches 5th grade science material with more than 60 key topics.