I just taught a lesson this quarter on tsunamis and how they differ from regular ocean waves. I used www.brainpop.com to show a video on tsunamis and then did the activity they provided, which compared and contrasted ocean and tsunami waves. I have posted brainpop as a animation suggesion before, so I didn’t want to again. Just wanted to note it was available. I would use the above link to show the effect tsunamis have on shorelines and how they move water. Since the first video is an animation, I would follow it up with actual photos of the damage caused by tsunamis which is also on this same page. My students were very interested in tsunamis and I think they would have responded well to this website (both animations and photos).