Deposition & Protecting Soil

REDSTONE CANYON · CRUMBLING

Deposition & Protecting Soil

Sediment Vault

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

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Train more: lesson transcript and free resources

Crumbling — Deposition & Protecting Soil Sediment Vault

Hi!

I'm Crumbling.

Welcome to Sediment Vault!

Will you help me investigate deposition & protecting soil?

The Grumblies have mixed up our clues.

Let's check the evidence!

Deposition happens when transported sediment settles.

Rivers may build deltas, and wind may build dunes, as material accumulates.

What does a growing delta show?

  • A. Rock melting
  • B. Sediment deposition
  • C. Sediment disappearing completely

The answer is B: Sediment deposition

Deposition happens when transported sediment settles.

Rivers may build deltas, and wind may build dunes, as material accumulates.

That clue helps us make sense of this place.

Plant roots, ground cover and other designs can help reduce soil loss.

Compare evidence because a useful design in one place may

need changes elsewhere.

Which design reduced soil loss in our test?

  • A. Covered soil
  • B. Bare soil
  • C. Removing all plants

The answer is A: Covered soil

Our equal-rainfall test collects much less sediment from covered soil

than bare soil.

Keeping the slope and rainfall alike makes ground cover the useful comparison.

Hmm...

how does that connect to our first clue?

Our equal-rainfall test collects much less sediment from covered soil

than bare soil.

Keeping the slope and rainfall alike makes ground cover the useful comparison.

Why keep rainfall the same?

  • A. To prove all slopes are identical
  • B. To change several factors at once
  • C. To compare the ground-cover effect fairly

The answer is C: To compare the ground-cover effect fairly

Our equal-rainfall test collects much less sediment from covered soil

than bare soil.

Keeping the slope and rainfall alike makes ground cover the useful comparison.

Nice investigating!

You've been following the evidence.

Let's bring our clues together before the adventure.

Deposition happens when transported sediment settles.

Plant roots, ground cover and other designs can help reduce soil loss.

Our equal-rainfall test collects much less sediment from covered soil

than bare soil.

You're ready to explore Sediment Vault 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.

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