Living Things, Chemical Weathering & Soil

REDSTONE CANYON · CRUMBLING

Living Things, Chemical Weathering & Soil

Rootsplit Ravine

Learn with Crumbling, then use your clues in the adventure. Pause whenever you need time to read or think.

Speech bubbles tell the story. Music and sound effects are optional; use the player’s volume control.

Train more: lesson transcript and free resources

Crumbling — Living Things, Chemical Weathering & Soil Rootsplit Ravine

Hi!

I'm Crumbling.

Welcome to Rootsplit Ravine!

Will you help me investigate living things, chemical weathering & soil?

The Grumblies have mixed up our clues.

Let's check the evidence!

Roots growing into cracks can push rock apart physically.

Chemical weathering changes minerals through reactions, often involving water.

Which example is physical action?

  • A. A root widening a crack
  • B. A mineral becoming a different substance
  • C. A new mineral forming

The answer is A: A root widening a crack

Our cards describe a root widening a crack

and a mineral changing through reaction with water.

Match the first to physical action and the second to chemical change.

That clue helps us make sense of this place.

Soil includes mineral particles, organic matter, water and air.

Decayed remains contribute organic matter;

soil is not just crushed rock.

What distinguishes chemical weathering?

  • A. Only rock size changes
  • B. Every piece must melt
  • C. Minerals change through reactions

The answer is C: Minerals change through reactions

Roots growing into cracks can push rock apart physically.

Chemical weathering changes minerals through reactions, often involving water.

Hmm...

how does that connect to our first clue?

Our cards describe a root widening a crack

and a mineral changing through reaction with water.

Match the first to physical action and the second to chemical change.

Which belongs in a simple soil model?

  • A. Only pure water
  • B. Mineral particles and organic matter
  • C. Only solid rock with no air or water

The answer is B: Mineral particles and organic matter

Soil includes mineral particles, organic matter, water and air.

Decayed remains contribute organic matter;

soil is not just crushed rock.

Nice investigating!

You've been following the evidence.

Let's bring our clues together before the adventure.

Roots growing into cracks can push rock apart physically.

Soil includes mineral particles, organic matter, water and air.

Our cards describe a root widening a crack

and a mineral changing through reaction with water.

You're ready to explore Rootsplit Ravine with me!

Choose TRAIN MORE if you'd like another look at the clues.

Choose START ADVENTURE when you're ready.

I'll be right here!

Or choose BACK TO MAP.

Every stop is open to explore!

Free Living Things, Chemical Weathering & Soil teacher guide and practice (PDF)

Explore any of the six lessons

Every destination is open. No account, purchase, previous lesson, or completed video is required.