Reading Metrics
Grade Level
Upper Grades (UG 9-12)
Book Level
8.8
Points
4.0
Fiction/Nonfiction
Nonfiction
Word Count
19492
Points per Word
0.000205
Page Count
92
Points per Page
0.043478
Description
Discusses how we determine the age of things, such as mummies, dinosaurs, and moon rocks. The coauthor is Jane Fitz-Randolph.