The earth /  

 - 45p. : col. ill. ;  24 cm. 
<br/><br/> Teens 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Earth sciences
<br/><br/><label>Index Terms--Genre/Form: </label><br/>EARTH.
<br/><br/><label>Dewey Class. No.: </label>550  / EAR