Reading Metrics
Grade Level
Middle Grades (MG 4-8)
Book Level
4.9
Points
1.0
Fiction/Nonfiction
Nonfiction
Word Count
5550
Points per Word
0.00018
Page Count
48
Points per Page
0.020833
Series
iScience Readers
Description
This book describes how things change or stay the same when they are combined. The coauthor is Joseph Brennan.