About the Series: These imaginatively designed fact books are great for casual browsing, but they also contain information kids can use in homework assignments and school activities. Each book contains a brief but enthralling fictional piece, its theme drawn from factual subjects that will be explored in the rest of the volume. Other features include four-color perforated pull-out picture cards, a double-page of color stickers, a spot-the-mistakes picture puzzle, ideas and directions for do-it-yourself learning projects, a fun quiz, a list of strange-but-true facts, and much more. About the Book: Factual articles covering earth"s natural history follow the introductory short story. Learning project activities show how to make a model of the earth, sun, and moon and how to make a magnetic compass.