At least at my house it could. This is one instance where an Internet website has put together a complete multimedia presentation thoroughly covering the subject. If you have younger kids, the My Body Science Series offers a number of books about bodily functions that every preschooler wonders about. We Pass was also a big hit at junior high camp. When my husband discovered it at Barnes and Noble one evening, he immediately sat down and read it to our kids guffawing most of the way through.
Kids learn, parents laugh.
What a great combination. I m a larva. The zoom cam gives you a microscopic view of these gross critters. Lots of information about why these bloodsuckers do what they do, and how you can avoid their ministrations. Mike Artell has a free cross curricular activity guide online to use with this book.