Primary Grades
Delta Explore Readers are nonfiction student books that build informational literacy skills through science content area reading and engaging photographs while promoting scientific inquiry at the primary grades.
In Delta Explore Force and Motion, students learn about the relationship between force, motion, and work. They discover how the six simple machines help people do work by moving objects easier, faster, or farther. Students also read about how construction workers use pulleys in their work.
Download Teacher's Guide (1.6 MB PDF)