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When Is a Planet Not a Planet?: The Story of Pluto
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School and Library
from Clarion Books (August 20, 2007)
9780618898329 | details & prices | 43 pages | 9.50 × 9.50 × 0.25 in. | Rec. grade levels 3-4 | 1.20 lbs | List price $17.00
About: Explains how advancements in technology have changed our understanding of the universe and why the number of planets in the solar system went down from nine to eight.
About: Explains how advancements in technology have changed our understanding of the universe and why the number of planets in the solar system went down from nine to eight.