C Ravenclaw is the blue house, and its students enjoy learning. They don't have as many adventures as the Gryffindors, but they are very clever and give good advice. D The Hufflepuff students are friendly, and they are not afraid of hard work. They are the kindest students in the school, and everybody likes them. Their color is yellow. It's bright and happy, just like them. E Slytherin is the least popular house at Hogwarts. The students aren't always very mice. The only teacher who really likes them is Professor Snape, but that's because he was in Slytherin House when he was a student at Hogwarts, too. Their color is green, and their symbol is a silver snake.