3rd Grade Classification Passages

Investigate Pluto's transition from a planet to a dwarf planet by examining the criteria established by the International Astronomical Union. Understand the principles of planetary classification and explore its implications in the study of astronomy, fostering skills in scientific evaluation and critical thinking.

Analyze Pluto's reclassification from a planet to a dwarf planet. Examine the criteria used for classifying celestial bodies and explore ongoing interest in Pluto's unique characteristics. Understand the evolving nature of astronomical classification and the factors that influence it.