Bonnet, Robert L.
Environmental science : 49 science fair projects / Robert L. Bonnet, G. Daniel Keen. - Blue Ridge Summit, PA : TAB Books, c1990. - xv, 124 pages. : illustrations. - Science fair projects series .
Includes glossary and index.
Pollution--Experiments--Juvenile literature
Ecology--Experiments--Juvenile literature
Science projects--Juvenile literature
Environmental science : 49 science fair projects / Robert L. Bonnet, G. Daniel Keen. - Blue Ridge Summit, PA : TAB Books, c1990. - xv, 124 pages. : illustrations. - Science fair projects series .
Includes glossary and index.
Pollution--Experiments--Juvenile literature
Ecology--Experiments--Juvenile literature
Science projects--Juvenile literature