"Why are you struggling?" Theo pondered nodding towards her dragon statue, "isn't this alchemy?"
Her wand waved and the dragon reformed into a butterfly, "the modeling part, perhaps, not the animation bit."
"Guys, quiet!" Daphne whispered as Professor McGonagall walked up.
"The assignment is to transfigure an animated dragon." McGonagall raised a brow at the motionless butterfly. "Perhaps, less talk and more practice is in order?"
"Sorry, Professor," the trio muttered, contrite.
"...there's a difference?" Theo whispered as McGonagall walked away.
"They're physics and chemistry," she explained.
"...ri-ght. Well. You are joining us? This summer?"