Here is a video the 8th graders and 6th graders watched or will watch in class about the possibility that tectonic plates could have "sprinted" during the flood from a supercontinent to our separated continents. The video also discussed the problems with radioisotope dating vs. dating via measuring the diffusion of helium atoms in a rock sample.
Dr. Baumgardner is a Ph.D. in geophysics and he is also a Creationist. He developed a software program called Terra that models the interactions between the mantle and the crust of the Earth that secular scientists around the world use.
This video contains college-level concepts, but I thought it was fascinating!