TY - BOOK AU - Whyman,Kathryn TI - Chemical changes T2 - Science today SN - 0531170322 (lib. bdg.) AV - QD35 .W47 1986 U1 - 540 19 PY - 1986/// CY - New York PB - Gloucester Press KW - Chemicals KW - Juvenile literature KW - Chemical reactions KW - Chemistry N1 - Includes index N2 - Describes the properties and uses of chemicals, how a solid changes to a liquid or gas, and how chemicals combine to make substances we use every day ER -