I chose Yellowstone for my
project on the USA  
and I made a Power Point presentation and a talk. I chose Yellowstone because
it was interesting.
      I found out about a lot of
new things. For example the park is called Yellowstone because of the Yellowstone  Lake  . I also found out about what a
caldera is and how many earthquakes there are a  year. A caldera is a lake on a volcano which
is created when an empty magma chamber collapses. With time the collapsed
chamber will be filled up with water. In Yellowstone there are about 3000
earthquakes a year. The last three super eruptions were 2,1 mio. 1,2 mio. and
640.000 mio. years ago.
      It was fun to read and write
about Yellowstone. 
Rasmus B.N.

