Google Earth

I have finally gotten excited about google earth. It took a while didn't it? I have been studying and formulating my plan for Friday and have found so many things I did not know about google earth. I think we are going to go on a "tour" of places yet to be determined. I want them to really be able to see something since they are young users.I found a lot of neat ideas for upper level to use with math, science, social studies. I printed the slide show I found called Twenty two interesting ways to use google earth in the classroom (and tips). It has some of the neatest activities in there. Any ideas you have will be welcome. Is a tour just really non creative? I hope they learn about using some of the tools.