Reading Metrics
Grade Level
Middle Grades (MG 4-8)
Book Level
6.2
Points
0.5
Fiction/Nonfiction
Nonfiction
Word Count
2789
Points per Word
0.000179
Page Count
48
Points per Page
0.010417
Description
Learn about unmanned aircraft, or drones, including how they were invented and improved over time, what they are used for today, and why they have sometimes caused controversy.