Oh, how I've been there done that. My oldest was 2 when she started asking questions about her grandfather who had died. Shortly after, her great grandfather was killed in a motor vehicle accident and two months later, just days before 9/11, another great grandfather died. Then, she was watching TV as the events in NYC unfolded. Then, the questions began: "Will we die at the same time?" "Will my name be on my coffin." "How do they close the coffin?" "If you don't know, Mommy, can we ask the man who works at the funeral home?"

I hate to tell you, but her obsession continued for well over a year. We talked, read books, etc. Then, one day, my pediatrician recommended Leo Bascaglia's The Fall of Freddie the Leaf, and for some reason, it resonated with her and the intense questions stopped. While this book is classified as "spiritual", it is not overtly Christian but deals with the life cycle. I highly recommend it to any family with young children dealing with death and dying issues. Good luck.