Listening to Prof. Lafay's instructions, Orr first wrote them down:
Orr
scorgify'ed her cauldron just to make sure that it was clean before saying
"Aguamenti" letting water flow out her wand into the cauldron. After making sure that it was at the right height she stopped the charm and immediately aimed her wand under the cauldron muttering,
"Incendio" to light a small flame in order to heat up the water.