Aboriginal spirituality--the Dreaming--is part of our unit on indigenous religions. The Dreaming is essentially a creation story. Over time, these stories set "out the structures of society, the rules for social behavior and the ceremonies performed in order to maintain the life of the land."
The Australian Museum has a great site about Aboriginal spiritual beliefs with a good overview of the Dreaming. The Australian government has another excellent site. Both are great for a webquest.
Here is a short clip about the Dreamtime.