Step 1: 💧 Water and 🌬️ Wind

Combine 💧 Water and 🌬️ Wind to create 🌊 Wave

Step 2: 💧 Water and 🌍 Earth

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

Step 3: 💧 Water and 🔥 Fire

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

Step 4: 🔥 Fire and 🔥 Fire

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

Step 5: 🌍 Earth and 🌬️ Wind

And then, combine 🌍 Earth and 🌬️ Wind to create 🌫️ Dust

Step 6: 🌊 Wave and 🌱 Plant

As next step, combine 🌊 Wave and 🌱 Plant to create 🌊 Seaweed

Step 7: 💨 Steam and 🔥 Fire

Combine 💨 Steam and 🔥 Fire to create 🚗 Engine

Step 8: 🌫️ Dust and 🌊 Wave

Combine 🌫️ Dust and 🌊 Wave to create 🏖️ Sand

Step 9: 💨 Steam and 🌱 Plant

Combine 💨 Steam and 🌱 Plant to create 🍵 Tea

Step 10: 🌋 Volcano and 🌫️ Dust

Combine 🌋 Volcano and 🌫️ Dust to create 🌋 Ash

Step 11: 🌍 Earth and 🌍 Earth

Combine 🌍 Earth and 🌍 Earth to create 🏔️ Mountain

Step 12: 🌫️ Dust and 🌍 Earth

Combine 🌫️ Dust and 🌍 Earth to create 🪐 Planet

Step 13: 🚗 Engine and 🌊 Seaweed

Combine 🚗 Engine and 🌊 Seaweed to create 🚤 Submarine

Step 14: 🍵 Tea and 🏖️ Sand

Combine 🍵 Tea and 🏖️ Sand to create 🥪 Sandwich

Step 15: 🌋 Ash and 💧 Water

Combine 🌋 Ash and 💧 Water to create 💦 Puddle

Step 16: 🪐 Planet and 🏔️ Mountain

Combine 🪐 Planet and 🏔️ Mountain to create 🌙 Moon

Step 17: 🥪 Sandwich and 🚤 Submarine

Combine 🥪 Sandwich and 🚤 Submarine to create 🚇 Sub

Step 18: 🌙 Moon and 💦 Puddle

Combine 🌙 Moon and 💦 Puddle to create 💫 Reflection

Step 19: 💫 Reflection and 🚇 Sub

Combine 💫 Reflection and 🚇 Sub to create 💊 Substance