When?
Subtitle: Experiments for the Young Scientist
Contributors: Steve Hoeft (Illustrator)
Publisher: Mcgraw-Hill
Published: July 1994
Language: eng
Format: Paperback
Number of pages: 133
ISBN-13: 9780070516403
Subjects: General science; Science: General Issues; Science & Technology - Experiments & Projects; Experiments; Children's 9-12 - Science; Children: Grades 4-6; Scientific recreations; Juvenile literature; Science