Wood is a very important material in construction, so does it in Little Alchemy. It is necessary in the combinations for Axe, Campfire, House, Wheel, Boat, Paper, Book, Bridge, Hammer, and more. The process of making Wood is not easy, you have to make Plant, Stone, Tree, Metal, Human, Tool, and finally Wood. Check out the detailed walkthrough and try it yourself.
Air + Water = Rain
Rain + Earth = Plant
Earth + Fire = Lava
Air + Lava = Stone
Air + Stone = Sand
Fire + Sand = Glass
Sand + Glass = Time
Plant + Time = Tree
Fire + Stone = Metal
Fire + Air = Energy
Water + Earth = Mud
Plant + Mud = Swamp
Swamp + Energy = Life
Earth + Life = Human
Metal + Human = Tool
Tree + Tool = Wood