Fiducia TogetherWeathering and mass movement
Rock broken down in place, and material moving downslope. Not the same as erosion.
Please note: This page explains a word or a process in education. It is general information about the system, the law and the guidance in England — not advice about your child, your school or your exam. If a decision is going against you, get advice from one of the free services we link to before you agree to anything or miss a deadline. If you are revising, check your own exam board's specification: boards word things differently and yours is the one that marks you.
What it is
Weathering breaks rock down where it sits — mechanical (freeze-thaw, exfoliation), chemical (carbonation, solution) and biological (roots, burrowing). Mass movement is the downslope movement of material: slumping, sliding, rockfall.
Where it applies
GCSE geography physical topics.
How it works
Erosion involves transport by a moving agent — water, ice, wind. Weathering does not move anything. Confusing the two is the commonest error in the topic.
Mass movement is a major cause of coastal retreat, often more than wave erosion alone.
How to use it in your work
Keep weathering and erosion distinct in your wording, and say which you mean.
For freeze-thaw, give the sequence: water enters a crack, freezes and expands about 9%, widens the crack, repeats.
Where to get help
Your teacher and your board's specification — options differ enormously between centres, and yours is the one that counts. Bitesize covers the skills; the subject song runs the topics.
Revise this with a song
These are ours. We write revision songs because a lot of people remember a tune when they cannot remember a page, and because revising out loud in the kitchen beats staring at a highlighter.
- The Geography Song The GCSE geography topics, set to music.
Where to read more
Last reviewed 2026-08-28 by Fiducia Together · Next review due 2027-08-28
Please note: This page explains a word or a process in education. It is general information about the system, the law and the guidance in England — not advice about your child, your school or your exam. If a decision is going against you, get advice from one of the free services we link to before you agree to anything or miss a deadline. If you are revising, check your own exam board's specification: boards word things differently and yours is the one that marks you.