If you missed class on Monday or Tuesday then you will want to watch the video. Here is the link.
http://www.history.com/shows/the-universe/videos/the-universe-life-and-death-of-a-star

In addition you have to complete the Lesson Review 2-2 Stars 9p. 93) and the Unit 2 Summary p. 96. There's a Star Graphing assignment also. You can get the directions from me when you come to class.

Hint to Everyone... The graphing is much easier if you use scientific notation.