🌍 Earth Systems · Unit 3 · ESS.6.2.3

The Rock Cycle Journey

You are a rock. Your journey takes millions of years, and every path changes what you are. Collect all three rock types — and discover what happens when a rock's journey ends as soil.

🪨 Become all 3 rock types 🌱 Unlock the soil secret

🎒 Your passport

Stamp all three to complete the cycle:

🌋 IGNEOUS 🏖️ SEDIMENTARY 💎 METAMORPHIC

Journey time: 0 years

🌱 The Soil Secret (unlocked!)

Here's the part most people never learn: soil is a rock's afterlife — and which rock weathers away decides which soil you get:

Parent rock	Weathers into…	Good for…
🌋 Basalt (igneous)	dark, mineral-rich soil	Farms love it — volcanic islands are green for a reason!
🏖️ Sandstone (sedimentary)	sandy, fast-draining soil	Pines and peanuts — hello, North Carolina sandhills!
💎 Marble/limestone	clay-rich, alkaline soil	Great pastures — and it fizzes in acid rain.

Different rocks → different soils. That's why a farmer, a gardener, and a geologist all care where the local rock came from. (That's standard ESS.6.2.3 — you just lived it.)

🏆 Cycle Complete!

🪨🏅

ROCK LEGEND

🪨 Take the Rock Cycle Quiz

🧭 Keep exploring

⚔️ Rock Battle ArenaRead the challenger's stats, choose the winning geological process. 🌱 Soil Formation SimulatorBuild the soil your rock becomes. 🌍 Earth Systems CenterAll four units.