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Tectonic plates - Coggle Diagram
Tectonic plates
Natural landforms
Volcanoes
A place where extremely hot material from inside Earth erupts at Earth's surface. This material can include:
- Gas such as steam and hydrogen sulfide
- ash made of fine rock particles
- lava
- lumps of solid volcanic rock such as scoria
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Island arcs and chains
When two oceanic plates collide, the faster-moving plate always subducts under the other. This forms a deep trench. the descending plate melts and is destroyed, forming magma. the magma rises to the surface creating a chain of volcanic islands called an island arc
Plate boundaries
Converging boundary
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It creates mountains, volcanoes and trenches
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Seafloor spreading
New rocky crust forms at ocean ridges and spreads outwards. The crust then sinks down into earth , forming ocean trenches. As the crust sinks, it melts and is destroyed. this process of the crust sinking down is called subduction
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Earthquakes
An earthquake is the rapid movement of the ground, usually back and forth and up and down in a wave motion. it is caused by the rapid release of energy as the tectonic plates move