Reading Metrics
Grade Level
Middle Grades (MG 4-8)
Book Level
8.2
Points
3.0
Fiction/Nonfiction
Nonfiction
Word Count
15777
Points per Word
0.00019
Page Count
122
Points per Page
0.02459
Description
This book presents facts about Leonardo da Vinci and his inventions with instructions for making some of them, including a perspectograph, camera obscura, hydrometer, safety bridge, walk-on-water shoes, and miniature versions of his helicopter and tank.