Perhaps Pluto is no longer a planet, but does that mean we should remove it from our solar system models? Is it time to order new textbooks, buy new posters, and invent new mnemonic devices? Slow down, no need to panic! Pluto hasn’t gone anywhere or changed at all, we simply changed the category in which to classify it. So rather than wave goodbye to this distant icy rock, take advantage of the situation to give our students a more complete view of the solar system, as well as some insight into the scientific process using the sorting and modeling activities described in this article.