Fitzpatrick, Julie. <br/><br/>
Science spirals / 
Julie Fitzpatrick ; illustrated by sara silcock. 
 - Englewood Cliffs, N.J. :  Silver Burdett Press,  c1984. 
 - 30 p. :  col. ill. ;  22 cm. 
 - Science spirals .
 - Fitzpatrick, Julie.  Science spirals. .
<br/><br/> "First published in Great Britain in 1986 by Hamish Hamilton Children's Books"--T.p. verso.  Includes index. 
<br/><br/> Explains how to build and perform activities with models of towers and bridges to illustrate the principles used in designing and constructing such structures. 
<br/><br/><label>Subjects--Topical Terms: </label><br/>water--Juvenile literature.<br/>Handicraft.
<br/><br/><label>Dewey Class. No.: </label>530  / F S