"Now, these pairs will stay this way until next year. There will be no arguments, complaints and no attempting to swap partners. Get used to it, and I don’t care if you hate each other you will work together! Am I clear?" Severus snarled."Yes Professor" the class chorused."Now, I am sure you have done this in your other classes, but today we will be re-doing a potion from last year." the class collectively groaned, for once both Gryffindors and Slytherins in agreement."I don’t want any complaints. Many of you couldn’t do this Potion last year, and I want to be sure that almost everyone remembers the basics." Severus said sternly as he walked to the board off to the side of the room, his robes billowing behind him."You will be making the Herbicide Potion. Can any of you remember what this Potion is for?" he asked as he charmed a piece of chalk to write the ingredients on the board. Hermione’s hand was of course in the air followed by Harry, Draco and Hermione’s partner Fay Dunbar."Dunbar! Let’s see if you deserved the grades you got from Beauxbatons"Herbicide is a Potion used to kill or damage plants, like weeds. Herbologists use it as protection from dangerous plants." Fay Dunbar said softly."Well, it seems the Gryffindors actually has someone with a brain among them now." Severus said sneering at Potter and Weasley."For those that remember, the first part shouldn’t take long. Then you leave your Potion for 45 minutes before returning to it. During that time you will clean your stations and get prepared for part two. Once that is done, if you still have time remaining you will read over the passage in your books about this Potion and each of the ingredients. Now get started" Harry grinned at Neville.