Share 'Google Earth'

I'm doing Google Earth on the Smart board with 4th and 5th graders. So far we've just begun learning the navigation tools and the kids are teaching each other what they already have discovered. I'm interested in having them make a placemarker tour for younger students. In our school in the next few months K. is studying bears, 2nd grade is studying Europe, 3rd is in the rainforest, 4th studys pr…