Space Leftovers: a book about comets, asteroids, and meteoroids by Dana Meachen Rau, illustrated by Denise Shea.

My five-year-old is loving space nonfiction right now.  The books vary amazingly in quality for such a young reader.  But this book by Rau hits the mark perfectly as a readaloud all about space rocks. 

The pictures are very child friendly and the text is exactly the right amount for kindergarteners and first graders to absorb.  Add in the fun facts on each page, and you have all of the interesting details that fuel the love of astronomy in children.  Share this with a class studying outer space or hand it to a space-loving child.