Motion and gravity
written and
Describes how force and gravity set objects in motion and how they influence the velocity and direction of moving objects. Also discusses the perception and measurement of motion.

by Richard L. Allington and Kathleen Cowles (1980)
Explores the touch and feel of objects that are scratchy, warm, squishy, bumpy, etc. Also includes activities based on the material presented.
written and
Describes how force and gravity set objects in motion and how they influence the velocity and direction of moving objects. Also discusses the perception and measurement of motion.
Sara Green
"Simple text and full-color photographs introduce beginning readers to the characteristics of the dog breed Border Collies. Developed by literacy experts for students in kindergarten through third grade"--Provided by publisher.
Lynn M. Stone
An introduction to the physical characteristics, habits, and natural environment of pigs and their relationship to humans.
Stillman D. Rogers
Describes the geography, plants and animals, history, economy, language, religion, culture, sports and arts, and people of Russia.