Houghton Mifflin science discoveryworks.
By: William Badders ... [et al.].
Contributors: Badders, William.; Houghton Mifflin Company.
Publisher: Houghton Mifflin
Published: 2003
Place of publication: Boston
Language: eng
Subjects: Science; Science -- Study and teaching (Elementary)
Other titles: Science discoveryworks.; Discoveryworks.; Science discovery works.; Houghton Mifflin science.
Notes: Includes index.

Grade 4.
Table of contents: title: Unit A. Earth's land; title: Unit B. Properties of matter; title: Unit C. Classifying living things; title: Unit D. Magnetism and electricity; title: Unit E. Weather and climate.