This reading comprehension explains the importance of classification in science and daily life. It tells the difficulties scientists had in determining Pluto's planetary status and briefly presents the new classification of planets.
To use this colorfuland informative four-page poster of all the planets and the size and distance from the sun: print the pages, fold the edges, then glue or tape together along the edges. Laminate the poster for longer use.
An informative reading comprehension selection of these celestial groupings is followed by 7 multiple choice questions, a research/writing prompt, 1 visualization question, and 4 questions that require brief written responses.