2. What are five things conserved in every nuclear reaction? 
            (or any chemical reaction for that matter)
            You may need to go back to a physics book and review!!  (at least 3 of these you learned in Physics, even if
            you're in 2nd trimester right now; 1 more you should have learned in Astrophysics this trimester; another 1
            you know from chemistry)

            to get credit for this question, you need to give me at least 4 of the 5
            (Please dont give me extra things in an attempt to cover your, umm, bases; if you do give me something that
            is not conserved,  this will subtract 0.5 from the number of correct things you give me)
 

   3.  a) Why is it that fusion of two hydrogen nuclei can take place in the sun even though hydrogen
                nuclei both have positive electric charge and therefore repel electrically?

                b) Early in its life, a star fuses two hydrogen nuclei together.  Later in life, it may fuse two carbon
                    nuclei together.
                    What needs to be different about the star later in life (than earlier) in order for the star to be able to
                    do this advanced fusion?
                  (Your answer should have something to do with the answer to part a!)