Difference between revisions of "Rock Cycle"
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===About the Rock Cycle=== | ===About the Rock Cycle=== | ||
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| + | |[[File:RockCycle.png|center|500px]] | ||
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| + | | style="height:20px; width:200px; text-align:center;" |A [[diagram]] showing different stages of the [[Rock Cycle]]. | ||
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| + | The [[Rock Cycle]] has several stages: | ||
| + | *[[Weathering]] - Rocks are broken down by the [[environment]]. | ||
| + | *[[Erosion (Rock Cycle)|Erosion]] - Wearing away rocks into smaller pieces. | ||
| + | *[[Transport (Rock Cycle)|Transport]] - Small pieces of rock are moved by rivers, glaciers and the wind. | ||
| + | *[[Deposition (Rock Cycle)|Deposition]] - When water and the wind slow down or when glaciers melt the small pieces of rock fall to the ground. | ||
| + | *[[Sedimentation]] - Layers of [[sediment]] (small pieces of rock) build up on lake beds and sea beds. | ||
| + | *[[Compaction]] - So many layers build up that the [[pressure]] squeezes all the water out. | ||
| + | *[[Cementation]] - [[Mineral]] salts that were [[dissolve]]d in the [[water]] fall out of [[solution]] and bind the [[sediment]] together. | ||
| + | If the rocks get buried deep enough: | ||
| + | *Heat and Pressure - The rock is either changed by the heat and pressure into a [[Metamorphic]] rock or the rock is [[melted]] to become [[magma]]. | ||
| + | *[[Uplift]] - Pressure from underneath the rock causes it to rise to the surface. | ||
| + | *Volcanoes - The molten rock comes out of [[volcano]]es as [[lava]] before it freezes to become an [[Igneous]] rock. | ||
Revision as of 14:06, 2 October 2018
Key Stage 3
Meaning
The Rock Cycle is a process that recycles rocks on the Earth's Crust.
About the Rock Cycle
 |
| A diagram showing different stages of the Rock Cycle. |
The Rock Cycle has several stages:
- Weathering - Rocks are broken down by the environment.
- Erosion - Wearing away rocks into smaller pieces.
- Transport - Small pieces of rock are moved by rivers, glaciers and the wind.
- Deposition - When water and the wind slow down or when glaciers melt the small pieces of rock fall to the ground.
- Sedimentation - Layers of sediment (small pieces of rock) build up on lake beds and sea beds.
- Compaction - So many layers build up that the pressure squeezes all the water out.
- Cementation - Mineral salts that were dissolved in the water fall out of solution and bind the sediment together.
If the rocks get buried deep enough:
- Heat and Pressure - The rock is either changed by the heat and pressure into a Metamorphic rock or the rock is melted to become magma.
- Uplift - Pressure from underneath the rock causes it to rise to the surface.
- Volcanoes - The molten rock comes out of volcanoes as lava before it freezes to become an Igneous rock.