Reading Metrics
Grade Level
Lower Grades (LG K-3)
Book Level
4.8
Points
0.5
Fiction/Nonfiction
Nonfiction
Word Count
1465
Points per Word
0.000341
Page Count
24
Points per Page
0.020833
Description
Readers learn facts about inventions, from the first usage of glue tens of thousands of years ago to 3-D printers used in space.