Once their chromatography experiment was set up, they moved onto the goop. Bri added the two cups of cornflour to her bowl then poured in a cup of water plus four drops of blue food dye and began to mix it up. Once it was completely combined, she reached in and scooped it up with her fingers. It held together in a solid ball causing her to squeal in delight, "It works!" The moment she stopped rolling it around, it promptly melted back into the bowl. She glanced over to where Hermione was standing and giving the bowl of oobleck a look that was a combination of fascination and disgust at how messy it was.