Weathering can break rock apart or change its minerals. Erosion moves material, for example when flowing water carries grains downstream. Ask two questions about an example: did the rock change, and did material move?
Earth and geology · Discover & try
How are weathering and erosion different?
Reading level 2 of 5 · DevelopingChange
Word help
Weathering
The breakdown or alteration of rock at or near the surface.
Erosion
Removal and transport of material.
Deposition
The settling or accumulation of transported material.
Watch · Try · Explain
See how it works
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Examples isolate a main process for comparison; real landscapes often experience weathering, erosion and deposition together.
What to look for
- Check whether material changes in place or moves elsewhere.
- Look for chemical change as well as broken pieces.
- Separate transport from the later settling of grains.
Explain what you noticed
A stream carries loose sand downstream. Which process is this example mainly showing?
Keep this idea: Weathering breaks down or alters rock; erosion moves material from one place to another.
Follow the sources
- National Park Service — Weathering and Erosion
- National Park Service — Changes in the Landscape: Weathering and Erosion
Source material checked 2026-10-28. Explanations and activities by Nepedia. Agency source links do not imply endorsement.
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