Reading Metrics
Grade Level
Middle Grades (MG 4-8)
Book Level
7.2
Points
2.0
Fiction/Nonfiction
Nonfiction
Word Count
9473
Points per Word
0.000211
Page Count
48
Points per Page
0.041667
Series
Science Discovery Timelines
Description
Readers will trace the history of key discoveries in physical science as they investigate timelines and gather key details in this book.