Catching the smirk Professor Lafay gave her, Sierra cast a grin in the woman's direction before turning her attention to the board. She read over the list of ingredients, mentally thinking to herself what each one would provide. She got everything situated just as it should be then flicked her wand out its holster.

The Five C's. Right. Those were pretty much drilled into her mind by this point. Cleanliness was what she needed now, though, so she peered into her cauldron. Although she didn't immediately see anything out of the ordinary, she very well knew that dust and left behind ingredients had a tricky way of hiding out until something went wrong.

She pointed her wand deep into the cauldron. "Scourgify!" she said. She waited a minute for the spell to take effect then pointed her wand into the cauldron one again. "Aguamenti!" she said, and filled the cauldron with water. When the water reached the point it should be, she ended the water charm with a quick "Finite," then waited for the next set of instructions.