Answer: In the late 1800's and early 1900's, urban areas of the United States attracted thousands of immigrants because of the ready availability of industrial jobs.
They wanted to have land that they could farm. The east was already crowded by large farms and cities. They were also in search of gold. There were also many trees that could be cut down and sent east, these people sought out a way to make money, or provide for their families that was not in the congested dirty cities of the east.
A process that uses observation and experimentation to gain knowledge is called science. The organized set of investigation procedures which is used in science is called a scientific method. Applied science on the other hand is referred to as technology.
I think she feels a bit discouraged because she doesn't believe she is as good as the rest of the tributes. Most of them have spent their entire lives preparing for the Hunger Games, whereas Katniss volunteered to save her sister. She was unprepared for the Games, but learned the ropes over the course of the training.