Reading Metrics
Grade Level
Middle Grades (MG 4-8)
Book Level
4.0
Points
0.5
Fiction/Nonfiction
Nonfiction
Word Count
1955
Points per Word
0.000256
Description
This book is about things that can be found under the ground such as pipes and electrical wiring, transport systems, carparks, shopping centres, houses and even churches. It is also about cave diving to find out about things under the sea.