Reading Metrics
Grade Level
Middle Grades (MG 4-8)
Book Level
5.2
Points
0.5
Fiction/Nonfiction
Nonfiction
Word Count
2698
Points per Word
0.000185
Page Count
48
Points per Page
0.010417
Description
Photographs and text introduce scientific concepts related to friction, explaining what friction is and what it affects and describing how people have used friction throughout history.