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A convection current is created when a heated material continually rises, cools and sinks. Plate tectonics are driven by this type of motion,
Convection.
When magma is being heated it rises. When it is cooled, it sinks.
When it is heated it becomes less dense (i.e. lighter). The more dense (i.e. heavier) magma sinks while the less dense magma rises to the top. It will eventually cool again causing a convection current within the mantle.
Both, constructive in that volcanoes are created along plate margins, destructive in that when plates meet, one is subducted (sinks under the other) and is destroyed as it melts into molten rock into the mantle below.
A convection current is created when a heated material continually rises, cools and sinks. Plate tectonics are driven by this type of motion,
A convection current is created when a heated material continually rises, cools and sinks. Plate tectonics are driven by this type of motion,
A convection current is created when a heated material continually rises, cools and sinks. Plate tectonics are driven by this type of motion,
Convection current
Convection.
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Convection is when heat causes a fluid to circulate around in a container.i.e. the fluid is heated at the bottom > the hot fluid rises to the surface and cools > the cool fluid then sinks again > the fluid is heated... etc.
When magma is being heated it rises. When it is cooled, it sinks.
The intense heat in the Earth's core causes molten rock in Earth's mantle to shift. That causes a pattern called a convection cell which forms when material rises, cools, and sinks. When the material sinks, it is warmed and rises again.
The intense heat in the Earth's core causes molten rock in Earth's mantle to shift. That causes a pattern called a convection cell which forms when material rises, cools, and sinks. When the material sinks, it is warmed and rises again.
Japan Sinks was created in 1973.
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