Magical Creatures
The creatures who run Gringotts bank
Goblins
The Head of Hufflepuff House and professor of Herbology
Professor Pomona Sprout
Harry's most used spell
Expelliarmus
Students visit here to purchase their school supplies
Diagon Alley
An letter that yells at you (Ron received one of these from his mother)
Howler
The contestants of the Triwizard Tournament face off against this creature in the First Task
Dragons
The art of changing the properties of an object (including Switching, Vanishing, Conjuring)
Transfiguration
Used to summon objects
Accio
Where Remus Lupin would change into a werewolf
Shrieking Shack
You throw this into a fireplace to transport you to another fireplace
Floo Powder
Harry Potter's wand contains the feather of this creature
Phoenix
Professor Binns, the only teacher who is a ghost, teaches this subject
History of Magic
Used for mind control (1 of 3 Unforgivable Curses)
Imperio
A school of magic located in France (Fleur Delacour attended here)
Beauxbatons Academy
An ordinary object that can transport you to another location by touching it
Portkey
In his 3rd year, Harry and Hermione rescue this creature from execution
Hippogriff
Professor Horace Slughorn was recruited by Dumbledore to come out of retirement to teach this subject
Potions
Used to erase memories
Obliviate
Department of Mysteries
A bowl in Dumbledore's office that allows the user to view memories
Pensieve
A black skeletal winged horse that is only visible to those who have witnessed death
Thestral
Defense Against the Dark Arts, a subject supposedly cursed so that no one holds the position longer for a year, was taught by this professor in Harry's 4th year
Bonus Points (+100): The real identity of this professor
Professor Mad-Eye Moody
Imposter: Barty Crouch Jr.
Used to bring inanimate objects to life (see Professor McGonagall at the Battle of Hogwarts)
Piertotum Locomotor
The headquarters of the Order of the Phoenix
Bonus Points (+100): The exact address
Sirius Black's Home
#12 Grimmauld Place
Name of Harry Potter's two broomstick models
Nimbus 2000 or Firebolt