["JUVENILE NONFICTION \/ Readers \/ Beginner","JUVENILE NONFICTION \/ Science & Nature \/ General (see also headings under Animals or Technology)","Chemical reactions.","Chemical reactions;Juvenile literature.","Matter;Properties;Juvenile literature.","CHILDREN'S SCIENCE (GENERAL)","Chemical reactions.","Chemical reactions;Juvenile literature.","Easy Non-Fiction","Easy Reader","JUVENILE","JUVENILE NONFICTION \/ Readers \/ Beginner","JUVENILE NONFICTION \/ Science & Nature \/ General (see also headings under Animals or Technology)","Juvenile Grades 1-2 Ages 6-7","Matter;Properties;Juvenile literature.","Monograph Series, any","Pictorial treatment","United States"]