Dawn's class on field trip to museum

[ladyhatshepsut.livejournal.com]

The story I've been looking for all week has one scene where Dawn and her friends (a new Scooby Gang?) are going on a field trip to a museum. One of her friends, Jack O'Neill's clone (Jon, I think) makes a joke about riding a dinosaur, horrifying one of the teachers. The students pull out note books to study the setups (under Faith's tutelage) but Jon recognized too many aspects of the Egyptian section and realizes that he's going to have to contact SG-1.

This is driving me nuts. I've been looking for over a week at TTH and other sites with no luck.