Reading Metrics
Grade Level
Middle Grades (MG 4-8)
Book Level
6.4
Points
0.5
Fiction/Nonfiction
Nonfiction
Word Count
1777
Points per Word
0.000281
Page Count
40
Points per Page
0.0125
Series
Images
Description
Describes the appearance, activities, and life cycle of the Earth's source of light and heat.