Water + Water = Lake
Earth + Earth = Mountain
Fire + Water = Steam
Steam + Water = Cloud
Earth + Water = Plant
Plant + Plant = Tree
Tree + Tree = Forest
Lake + Forest = Swamp
Swamp + Plant = Venus Flytrap
Fire + Earth = Lava
Lava + Water = Stone
Stone + Stone = Wall
Wall + Wall = House
House + Human = Family
Family + House = Home
Home + Wizard = Hogwarts
Wizard + School = Hogwarts
Hogwarts + Wizard = Harry Potter