Geography · KS3 Y8 · Rivers & Coasts

Coasts & erosion

Coasts & erosionFree2:30Heddy Score 3 of 7, below the standard
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What you need to know

  • Waves wear the coast away in four processes.
  • Hydraulic action is the force of the water, and abrasion is sediment scraped and thrown against the rock.
  • Attrition is rocks colliding and becoming smaller and rounder.
  • Solution is seawater dissolving some kinds of rock.
Heddy Score3/7, Below the standard
See the seven stars
  • Trusted source · passed. The creator's own upload, live and playable here.
  • On the map · not judged yet. A teacher watched it: it mainly teaches this map topic.
  • Spec-true · not judged yet. Accurate, and right for the current UK specification.
  • Focused · passed. One idea, short enough to watch in one go.
  • Accessible · passed. Good captions, clear sound and pictures.
  • Safe for children · not judged yet. Right for 11 to 16 year olds, with no sales pitch.
  • Proven · not judged yet. Earned from our students: they learn from it, find it helpful and watch it to the end.
★ passed · ☆ pending · ✕ failed
Our students

Not enough students yet

Our own students' answers. These are what move ★7 Proven.
On YouTube

398K views · 1.96K likes · Time for Geography 1.98K subscribers

As reported by YouTube on 2026-11-01. Not part of the Heddy Score.
How the Heddy Score works

Why we picked it

It names and separates the four marine erosion processes students are asked to recall.

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