Reading Metrics
Grade Level
Middle Grades (MG 4-8)
Book Level
6.2
Points
0.5
Fiction/Nonfiction
Nonfiction
Word Count
3033
Points per Word
0.000165
Description
Readers learn about technology that does helpful, and sometimes icky, work. Read about a robot capsule you can swallow, sewer crawlers and diarrhoea detectors.