Teaching mountains, rivers, etc etc...make a candy map with your kids!! Including their sense of taste will make them remember better whatever it is you're teaching them...for sure/1 Here's a few suggestions (feel free to add, subtract, and substitute your own ideas)! There's hundreds of candy out there that you could use for your specified lesson. Be creative :).
Land: green icing
Oceans: blue icing
Mountains: chocolate chips
Rivers: Twizzlers (separated, preferably blue)
Major cities: Gumdrops or something of that sort