I had a request for a session on Google Earth from a Gr. 3/4 teacher. They were studying communities and the teacher wanted the students to experience the hierarchy of communities from Earth on down.
Earth, Continent, Country, Province, County, Community.
Well, Google Earth is well suited to do this. We used the school's SMARTboard and the students had a blast using a pointer and spinning the world to the next continent and then identifying Canada and then our province and at last our community. We even toggled to Streetview in Toronto. The kids were thrilled at seeing this view.
You should have seen the students' faces. Not a dull face in the room! Engaged, amazed and asking questions. So, if it has been a while since you've used Google Earth, try it.
You'll like it and so will your students!