Reading Metrics
Grade Level
Middle Grades (MG 4-8)
Book Level
4.2
Points
0.5
Fiction/Nonfiction
Nonfiction
Word Count
558
Points per Word
0.000896
Page Count
24
Points per Page
0.020833
Series
World's Fastest; Torque
Description
Text and photographs review the history of supersonic jets, discuss the technology of hydrogen fueled engines, and include predictions for the future of supersonic aircraft.