Watch Crash Course Geography Season 1 Episode 18 Online
- COUNTRIES: United States of America
- Subtitles: English
From towering mountains to pebbles along a river, the Earth is made of a huge variety of rocks. In today's episode, we're going to follow the rock cycle of a piece of granite in the Himalayan mountains, and as you'll see, every rock has a far-reaching story to tell often millions of years in the making.
