Reading Metrics
Grade Level
Lower Grades (LG K-3)
Book Level
4.5
Points
0.5
Fiction/Nonfiction
Nonfiction
Word Count
2532
Points per Word
0.000197
Page Count
64
Points per Page
0.007812
Description
From Leonardo da Vinci to the Wright brothers, people dreamed of taking to the sky in complex "flying machines" before inventions such as hot-air balloons, airships, helicopters, and airplanes made it all possible.