What is the difference between Junior High and Senior High?

What is the difference between junior high and Senior high? In my opinion there are many differences between Junior and Senior high school. First of all after junior high, Senior high school is more important and difficult; you have to get all of your credits by the end of high school. But to graduate you need at least a hundred credits to graduate, and you also have to do high school diplomas and all that jazz, and provincial achievement test are very important too. Also in high school you become more individual with your studies, and you also learn how to work in groups together as a team. Also in high school most people get more school spirit no all but many do, plus we become smarter. In Senior high we start doing bigger and harder projects for example we start getting assigned amounts of words for essays, blogs, and other assignments. And assignments start having higher marks then in Junior high school. Also Junior high school was your time to goof off but in senior high school you become way more serious and reliable to get homework and assignments done. And the teachers start to trust you more in the way that you can get all of your work done with no problems. And we start to grow up in Senior high we start to lose the rude parts of our attitudes and start to become more understanding. And speaking of understanding teachers are very understanding and help us learn and make process with our learning more, I guess.