Hey it's 61 M agian and i wanted to tell you some thing about the changes in matter capter we did.  Some things I learned in this chapter is how chemical reactions start and i also learned what an exothermic and endothermic reaction is.  Some things i liked best about this chapter is the labs because we got to make our own chemical reactions.  One thing i did not like about this chapter is the papers we had to do wile we were doing labs.