- Trappers were coming to Yellowstone for fur, mainly beavers because the fur was fashionable
- Usually at Yellowstone you get 6 feet of snow, and it is common for it to be 30˚ below 0
- The native Americans in Yellowstone used obsidian on the ends of their arrows, and the only reason it is there is because of the volcanoes. Obsidian is volcanic glass.
- When there was a volcano eruption, the ash covered the trees, and the ash turned the tree cells into stone, and it is called petrified wood. It looks like wood, but it is stone.
- The hot springs on Yellowstone are about 200˚, and some of them are acidic.
- The gyzer Old Faithful got it's name, because the people who found it noticed that it was pretty persistent, so it was faithful. It's tempature is above boiling, about 400˚. If something was blocking the 3-inch wide opening, it would explode.
I thought it was really cool that Yellowstone gets 6 feet of snow every winter, and at night the tempatures can get 30˚ below at night, and that's normal. I think that would make it hard to live there, because you have to put up with so muck snow. Imagine shoveling your driveway! I found out that obsidian was volcanic glass. I think that makes sense, because it is kind of like glass. I was amazed at the whole "Petrified wood" thing. I thought it was reallt cool that the ash could turn wood into stone. I want to know how that works. I was also surprised when she said that the opening for a gyzer is about a fist length. It's crazy that that much water can get through that tiny