Match the spell to its function.
premade quiz sheets
pens/pencils
"Now that He-Who-Must-Not-Be-Named has returned, we must all be as prepared as possible for whatever challenges we may face. Remember - Constant Vigilance! Match the numbered explanation on the right to the spell on the left."
List in random order the names of spells from the books on one side. On the other side list the functions. The winner is the one with the most correct answers.
The HP Lexicon's Encyclopedia of Spells is the perfect resource for lists of spells and their functions.
http://www.hp-lexicon.org/magic/spells.html