In searching for different ways to get our youth more familiar with using their Bibles.
I looked up passages in the Bible containing animals that can be found in our local Zoo.
We planned a day a the Zoo. They had to look up the passages, then find them at the Zoo.
You can either have them take a picture (digital cameras are great) or have a leader sign off that the did find the animal. (can be hard on the leader, keeping up with a group of kids) You can make it more interesting by setting a time limit.
I gave them passages that contained 15-20 animals, they had to find at least 12. (Giving them some wiggle room for animals not on display or feeding etc.)
You can get a list of Animals in the Bible at http://www.christiananswers.net/dictionary/animals.html