Step 1: 💧 Water and 🌬️ Wind

Combine 💧 Water and 🌬️ Wind to create 🌊 Wave

Step 2: 💧 Water and 🔥 Fire

Next, combine 💧 Water and 🔥 Fire to create 💨 Steam

Step 3: 💧 Water and 🌍 Earth

Then, combine 💧 Water and 🌍 Earth to create 🌱 Plant

Step 4: 🔥 Fire and 🔥 Fire

Now, combine 🔥 Fire and 🔥 Fire to create 🌋 Volcano

Step 5: 🌫️ Dust and 🌊 Wave

And then, combine 🌫️ Dust and 🌊 Wave to create 🏖️ Sand

Step 6: 💨 Steam and 🌱 Plant

As next step, combine 💨 Steam and 🌱 Plant to create 🍵 Tea

Step 7: 🌍 Earth and 🌬️ Wind

Combine 🌍 Earth and 🌬️ Wind to create 🌫️ Dust

Step 8: 💨 Steam and 🔥 Fire

Combine 💨 Steam and 🔥 Fire to create 🚗 Engine

Step 9: 🌱 Plant and 🌱 Plant

Combine 🌱 Plant and 🌱 Plant to create 🌳 Tree

Step 10: 🌋 Volcano and 🌫️ Dust

Combine 🌋 Volcano and 🌫️ Dust to create 🌋 Ash

Step 11: 🍵 Tea and 🏖️ Sand

Combine 🍵 Tea and 🏖️ Sand to create 🥪 Sandwich

Step 12: 🌋 Ash and 🌫️ Dust

Combine 🌋 Ash and 🌫️ Dust to create 🌋 Cinder

Step 13: 🚗 Engine and 🚗 Engine

Combine 🚗 Engine and 🚗 Engine to create 🚀 Rocket

Step 14: 🌋 Ash and 🌳 Tree

Combine 🌋 Ash and 🌳 Tree to create ✏️ Pencil

Step 15: 🌋 Cinder and 🥪 Sandwich

Combine 🌋 Cinder and 🥪 Sandwich to create 🍞 Toast

Step 16: ✏️ Pencil and 🚀 Rocket

Combine ✏️ Pencil and 🚀 Rocket to create 💣 Missile

Step 17: 💣 Missile and 🍞 Toast

Combine 💣 Missile and 🍞 Toast to create 🍪 Pop Tart