by Bonnet, Robert L.

[ 01. English Non Fiction ] Authors: Keen, Dan. Series: Science fair project series Published by : TAB Books, (Blue Ridge Summit, PA :) Physical details: xiv, 146 p. : ill. ; 25 cm. Subject(s): Earth sciences --Exhibitions. | Earth sciences --Experiments. | Science projects. Year : 1990 Item type : 01. English Non Fiction