Awesome Science has 6 DVDs narrated by a 14 year old.  He is intelligent, articulate, and a great role model for kids.  His science information is well researched and will educate and inform the entire family!  The 6 episodes for sale are:  Grand Canyon, Yellowstone, Petrified Forest & Meteor Crater, Yosemite and Zion, Mount St. Helens, and John Day Fossil beds.  There are future episodes in the works.

http://www.awesomescience.tv/