Unwind by Neal Shusterman

In the future a war is fought in the United States over one issue--abortion.  To end the fight, the two warring groups come to an agreement: parents can no longer abort their children, BUT they can, for whatever reason, choose to have their son or daughter unwound while that child is between the ages of thirteen and eighteen.  Unwinding is the term used to describe the process of taking the different body parts and giving them as an organ donation to other people, so technically, the teen isn't dead, he/she is alive in hundreds of other people. 

Connor gets into too many fights.  His parents are planning a vacation to the Bahamas while he is getting unwound.  Risa isn't good enough.  She lives in a State Home.  New babies are coming in, and if you aren't good enough, you get unwound.  Lev is a tithe.  In his religion, God is given ten percent of all a person possesses.  Lev is the tenth child, he is going to be unwound as a way of giving back to God. Being a "tithe" is a great honor, and Lev is proud of his status.  That changes when a crazy guy grabs him and takes him on a wild trip.
With short chapters and lots of suspense, this is a book you won't want to put down.

AWARDS: Evergreen Young Adult Book Award Winner - 2010, YALSA Quick Pick for Reluctant Readers - 2008