Reading Metrics
Grade Level
Middle Grades (MG 4-8)
Book Level
6.2
Points
1.0
Fiction/Nonfiction
Nonfiction
Word Count
3860
Points per Word
0.000259
Page Count
32
Points per Page
0.03125
Description
Leonardo da Vinci had an idea for an aircraft with a spinning blade, but the first helicopter first appeared in the 1930s. Carrying supplies, rescuing casualties, transporting soldiers, bombing targets--read about the many tasks of the modern helicopter.