Reading Metrics
Grade Level
Middle Grades (MG 4-8)
Book Level
5.7
Points
0.5
Fiction/Nonfiction
Nonfiction
Word Count
2730
Points per Word
0.000183
Page Count
32
Points per Page
0.015625
Description
Readers explore the history of drones, from hot-air balloons to radio-controlled aircraft to today's unmanned aerial vehicles.