Reading Metrics
Grade Level
Middle Grades (MG 4-8)
Book Level
9.4
Points
4.0
Fiction/Nonfiction
Nonfiction
Word Count
23042
Points per Word
0.000174
Page Count
127
Points per Page
0.031496
Series
Venture Book
Description
This book discusses the processes by which scientists determine the age of their specimens, such as counting the number of the tree rings, reading the strata, and using chemical analyses and the carbon 14 test.