"In this book, readers learn how plants clean the air with their leaves."-- Provided by publisher.
Audience
Ages 5-8.
Bibliography
Includes bibliographical references (page 24) and index.
Contents
A very helpful tree -- A harmful gas -- Leaves do the cleaning -- Making food -- Making oxygen -- Every plant can help -- Cleaning the air indoors -- Hooray for rain forests! -- People need plants -- Science lab.