NASA
Nasa Space Science Data Archive: Viking Mission to Mars
This resource provides thorough background information on the Viking Missions and links to detailed data and images.
Cosmos 4 kids
Cosmos4 Kids: Viking and Voyagers
Learn how about the Voyager and Viking probes that explored Mars for NASA. Learn how the data the probes send back help scientist explore Mars from Earth. Also included is a video on the next tools that will be used to explore space.
NASA
Nasa: Welcome to the Planets Viking 1 & 2
Images and a description of the Viking mission to Mars can be found here. The descriptions are also available in audio format.