SnitchSeeker.com - View Single Post - Potions Lesson 1 - who stole the cookies from the cookie jar?

hermygirl · 10-20-2019, 09:26 PM

It was as the first students came up to get the inks, that Noble realised that he’d neglected to mention something. And whilst he might have put the small circles of ink on his filter paper in the same order as the bottles that come from, he wouldn’t be surprised if at least one student had thrown logic out the window and put them in any old order. “Make sure to label which ink is which using pencil under the line you made. Surnames will be sufficient, given the limited space.” Otherwise they could do the whole experiment, and have a beautiful chromatograph, but not actually identify the true cookie thief. And that would be a shame indeed.

Quote:

Originally Posted by suspects’ inks, left to right

Beryl
Burke
Sandhu
Schmoe
Trent

That said, he glanced around the room to check how people were getting on. For the most part, things seemed to be going well. Noble certainly appreciated Cecelia’s attention detail with her ruler, and Bernadette, Valencia, Blake, Dalia, Claudine and Patrick all seemed to finish the first step easily enough. Noble did give a bit of a look at Kaiser, however, who seemed to be doing a whole lot of rummaging in his back after affirming he was okay. Hopefully the boy would settle again soon.

Someone else who got a look? Carsyn. What was the girl doing, drawing huge circles in pencil like that? Had the girl been listening to or watching his demonstration at all? He grumbled at the fourth year, and non-verbally summoned the filter paper from her desk. “I suggest you come look at the example and try again, Carsyn. I said one line of pencil.” What a messy waste of graphite.

Leaving her to catch up, Noble moved on to explaining the next step. “To separate the inks into their component pigments, we need to use a solvent. Not all inks dissolve in all solvents, which is why we’re going to use both alcohol and wizarding solution today to compare.” He held up each respective bottle of solvent from the tray the front as he mentioned it. “You will need to collect two beakers from the cupboard under the window. Label the first alcohol, and add 1cm depth of alcohol to it. The second you should label wizarding solution, and add 1cm depth of wizarding solution to.”

All easy so far, right?

“Then you’ll need to collect two paperclips and two splints.” Hopefully they all remembered that splints were the thin wooden strips that could be used to light the burners without magic. Most of them probably hadn’t used them since first year. “We’re going put the paperclip on the top of the paper, that is, the opposite end to where you drew the line and dots, and then hook that over the splint placed horizontally over the top of the beaker to suspend our filter paper over the solution. And this is the important bit…we want the level of the solvent to be above the bottom of the paper, but below the pencil line. It should not touch the dots of ink, and you may need to adjust your paperclip to ensure that it doesn’t.” He demonstrated using one of his pieces of filter paper, carefully lowering it into the beaker of alcohol, and hooking it over the splint.

“Do that twice – one filter paper in each solution. Got it?” He looked around the room to check. “If there’s no questions, you may start the next step. Once you have the filter paper in the beaker, be careful not to knock or move it in a way that the liquid might splash.”

SPOILER!!: diagram of how things should look

10-20-2019, 09:26 PM	#53 (permalink)
hermygirl Chizpurfle Join Date: Mar 2006 Location: underwater Posts: 10,319 x9	Stuck inside with Sirius \| Splish-Splash \| bamBAM \| ☁ Spooktacular ☁ It was as the first students came up to get the inks, that Noble realised that he’d neglected to mention something. And whilst he might have put the small circles of ink on his filter paper in the same order as the bottles that come from, he wouldn’t be surprised if at least one student had thrown logic out the window and put them in any old order. “Make sure to label which ink is which using pencil under the line you made. Surnames will be sufficient, given the limited space.” Otherwise they could do the whole experiment, and have a beautiful chromatograph, but not actually identify the true cookie thief. And that would be a shame indeed. Quote: Originally Posted by suspects’ inks, left to right Beryl Burke Sandhu Schmoe Trent That said, he glanced around the room to check how people were getting on. For the most part, things seemed to be going well. Noble certainly appreciated Cecelia’s attention detail with her ruler, and Bernadette, Valencia, Blake, Dalia, Claudine and Patrick all seemed to finish the first step easily enough. Noble did give a bit of a look at Kaiser, however, who seemed to be doing a whole lot of rummaging in his back after affirming he was okay. Hopefully the boy would settle again soon. Someone else who got a look? Carsyn. What was the girl doing, drawing huge circles in pencil like that? Had the girl been listening to or watching his demonstration at all? He grumbled at the fourth year, and non-verbally summoned the filter paper from her desk. *“I suggest you come look at the example and try again, Carsyn. I said one line* of pencil.”** What a messy waste of graphite. Leaving her to catch up, Noble moved on to explaining the next step. “To separate the inks into their component pigments, we need to use a solvent. Not all inks dissolve in all solvents, which is why we’re going to use both alcohol and wizarding solution today to compare.” He held up each respective bottle of solvent from the tray the front as he mentioned it. “You will need to collect two beakers from the cupboard under the window. Label the first alcohol, and add 1cm depth of alcohol to it. The second you should label wizarding solution, and add 1cm depth of wizarding solution to.” All easy so far, right? “Then you’ll need to collect two paperclips and two splints.” Hopefully they all remembered that splints were the thin wooden strips that could be used to light the burners without magic. Most of them probably hadn’t used them since first year. “We’re going put the paperclip on the top of the paper, that is, the opposite end to where you drew the line and dots, and then hook that over the splint placed horizontally over the top of the beaker to suspend our filter paper over the solution. And this is the important bit…we want the level of the solvent to be above the bottom of the paper, but below the pencil line. It should not touch the dots of ink, and you may need to adjust your paperclip to ensure that it doesn’t.” He demonstrated using one of his pieces of filter paper, carefully lowering it into the beaker of alcohol, and hooking it over the splint. “Do that twice – one filter paper in each solution. Got it?” He looked around the room to check. “If there’s no questions, you may start the next step. Once you have the filter paper in the beaker, be careful not to knock or move it in a way that the liquid might splash.” SPOILER!!: diagram of how things should look __________________