Reading Metrics
Grade Level
Lower Grades (LG K-3)
Book Level
4.8
Points
0.5
Fiction/Nonfiction
Nonfiction
Word Count
2224
Points per Word
0.000225
Page Count
32
Points per Page
0.015625
Series
Smart Words Reader
Description
Photos and diagrams help readers identify the nucleus and coma of a comet, visit the asteroid belt to learn about its orbit, and watch space probes and telescopes in action. The text includes 20 highlighted science vocabulary words.