I have a WebQuest that uses a neat interactive site from National Geographic all about earthquakes. I borrowed the original WebQuest from someone else, so unfortunately I will not share that since it is not my property.
However, this modified version of the WebQuest is completely my own. I have many special education students mainstreamed into my classroom, and I always provide them the option of the un-modified version of the WebQuest, or one that is a bit simpler and to the point. They use the same website and achieve the same learning objectives that I have for my non-special education students.
The website is Forces of Nature, Earthquakes: http://environment.nationalgeographic.com/environment/natural-disasters/forces-of-nature/.