Book
The Search for Planet X
by Tony Simon
- Published
- 1962
- Genre
- Biography
- Pages
- 128
- URL
- https://www.goodreads.com/book/show/3517949-the-search-for-planet-x?ac=1&from_search=true
Reading measures
- Lexile
- 1420L
- Suggested reading age
- ages 11–14
- Ambleside year
- Year 6 onwards · ages 11–14
An Ambleside year is a year of the Ambleside Online programme, not a reader's age. Year 0 is its first year, and a book used over several years shows the span. The ages beside it are that band offered two grades up and none down, which is how we offer a band; they are a placement, not a reading measure.
Clyde Tombaugh in 1930 discovered the ninth planet in our solar System. He discovered Pluto, the planet farthest from the sun. This is the story of his tireless search for Pluto.
Tags
BiographyPlutoScience-Astronomy