Science help first correct answers 10 points?

I suggest you ask your teacher for help on your homework. If we help you then we go against Yahoo Answer's rules which says we cannot do the work for you. My advise is that your teacher is a much better sourse for the correct way to solve this in the first place. That is what they are there for and then it won't give you any wrong answers and will help you do your own homework better plus keep everyone on yahoo answers from breaking the rules. Good luck.