Science help! ?

First of all, I teach high school science, and it looks to me like you are trying to cheat a little. You should really be careful, you never know what sort of people are are answering your questions. They could have no idea what they are talking about, and you would fail the ignment. Use your text book, and if you don't have one, do some research on Google, but don't let complete strangers do your homework for you.