The Supersonic X-15 and High-Tech NASA Aircraft cover

The Supersonic X-15 and High-Tech NASA Aircraft

Author: Holden, Henry M.

Reading Metrics

Grade Level Middle Grades (MG 4-8)
Book Level 6.8
Points 1.0
Fiction/Nonfiction Nonfiction
Word Count 5169
Points per Word 0.000193
Page Count 48
Points per Page 0.020833

Description

This book describes the advanced aircraft which has been employed by the National Aeronautics and Space Administration.