Across
- 3. Erosion that happens under the water, most likely to happen at high tide.
- 8. A type of rock formed by a mix of volcanic ash and mud and older, eroded rock - often found at the West Coast.
- 9. The zone between low and high tide.
- 11. how much (or how little) a material can absorb water (or other liquids).
- 13. A coastal area that has a medium tidal range (2m-4m)
- 16. a coastal area that has a very small tidal range (<2m)
- 17. refers to processes that shape the land
Down
- 1. The mix of materials (sand, rocks, volcanic ash etc.) that make up a body of rock
- 2. A type of weathering that happens due to force and pressure, rather than chemical breakdown.
- 4. Erosion that happens in the air, most likely to happen at low tide.
- 5. How 'full' of water (or not) a material is.
- 6. A kind of rock created by volcanic eruptions of magma that is a mix of oceanic and continental crust e.g. the Waitakere Volcano or Mt Ruapehu.
- 7. An overhang on a cliff caused by erosion lower down on the cliff face
- 10. The step-like drop off at the edge of a wave-cut platform
- 12. Areas or 'planes' of rock that have naturally occurring splits. Often occurs when magma of a certain type cools slowly and forms large crystals.
- 14. A horizontal bench-like structure. Sometimes present at the base of cliffs that are acted on by waves.
- 15. A kind of weathering that happens when salt crystals break down the surface of a rock face, making it easily washed away by wind or rainfall.