Science all about us

*Science All About Us* is the first volume in a series entitled **Our World of Science**. The total vocabulary of *Science All About Us* is 261 words. Of these words 167, taken from the vocabulary of the Ginn Basic Readers for the First Grade, are assumed as known. *Science All About Us* also uses 94 new words necessary to the development of science concepts. These new words are gradually introduced. No more than two of them appear on any page; and all but 14 of the new words are used four times or more. All variants except those formed by adding I, EC, and 'I to a known word are counted as new words.