Reading Metrics
Grade Level
Middle Grades (MG 4-8)
Book Level
5.1
Points
0.5
Fiction/Nonfiction
Nonfiction
Word Count
2176
Points per Word
0.00023
Page Count
32
Points per Page
0.015625
Description
This book presents the science behind building and defending castles, including the use of simple machines such as pulleys and levers.