Lighten your load
By: Pan-Canadian Science Place team: Gary Cross ... [et al.]
Contributors: Cross, Gary.
Series: Pan-Canadian science place -- Gr. 4
Publisher: Scholastic Canada
Published: 2000
Place of publication: Markham, Ont
Language: eng
Number of pages: 48
Subjects: Science -- Canada.; Pulleys -- Juvenile literature.; Gearing -- Juvenile literature.
Genres: Juvenile literature.
Other titles: Pulleys and gears.
Notes: Subtitle on Teacher's guide: Pulleys and gears.

Teacher's guide is Ontario edition.

CR