Reading Metrics
Grade Level
Middle Grades (MG 4-8)
Book Level
7.7
Points
1.0
Fiction/Nonfiction
Nonfiction
Word Count
4329
Points per Word
0.000231
Page Count
32
Points per Page
0.03125
Series
Earth's Resources
Description
This book discusses iron, which is a silvery-gray material that is widely found throughout Earth's crust. It is not found in a pure, ready-made state but has to be extracted from ores that are obtained from different rocks.