How Did That Get to My House is a series of books that answer some of the questions that kids want to know.  The series for young readers covers eight common things that come into your house: electricity, internet, mail, music, natural gas, telephone, television and water.  In Natural Gas, Nancy Masters explains how natural gas is created, moved, and regulated, with some important safety information.  There is a "find out more" section at the end to answer further questions.  All eight of the books come in handy for answering the questions a curious kid might have about the world around them.  They can be read by a first or second grader on their own, but answer just complex enough for a grownup reading to a preschooler.  If you have a curious kid in your house, these books are a great place to start looking for answers!