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What is the process where cool dense material sinks and warm bouyant material rises?
Wiki User
∙ 11y ago
Convection, hope this helps.
Wiki User
∙ 10y ago
Wiki User
∙ 11y agoIt is called convection.
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When convection takes place in the matle why does cooler material sink while warmer material rises?
Cooler material (magma) shrinks and becomes more dense. Gravity acts on this denser material more strongly because of its greater unit mass (density = Mass/volume). Lighter material rises as the heavier material displaces it below. This produces a the apparent bouyant force.
What process is cool air acts as a barrier over which warmer and less dense air rises?
Frontal wedging
What process occurs in the hot pliable mantle rock beneath the earths plates?
Convection. The same as the shimmering above a hot road in summer, heated material is less dense and rises over cooler material.convection currents
Liquid magma flow upward through the crust because it is less dence than the solid material around it?
less dense than the solid material around it
How does the temperature and density drive the convection currents in the mantle?
Temperature differences in the mantle drive convection currents because warm material is less dense and rises, while cooler material is more dense and sinks. This movement creates a circular flow as the cooler material sinks and gets heated, while the warmer material rises and cools down. The density variations caused by the temperature differences are a key driver of convection in the mantle.
When convection takes place in the matle why does cooler material sink while warmer material rises?
Cooler material (magma) shrinks and becomes more dense. Gravity acts on this denser material more strongly because of its greater unit mass (density = Mass/volume). Lighter material rises as the heavier material displaces it below. This produces a the apparent bouyant force.
Is it true molten material in the asthenosphere rises in convection currents because heated materials become more dense?
Actually, hot, less dense material rises, and cold, denser material sinks. Denser material will be heavier (per unit volume) and gravity therefore pulls it down. Less dense material has buoyancy and rises. It's very logical.
Why some partly molten material rises towards Earths surface.?
Because it becomes less dense as it gets hotter. Less dense=lighter and therefore rises. Just like the wax in a lava lamp.
Do convection currents form in the mantle when heated materials become more dense?
Yes, convection currents form in the mantle due to the heating and cooling of material, which causes density differences and drives the movement of material. When material in the mantle is heated, it becomes less dense and rises, while cooler, denser material sinks, creating a circulation pattern known as mantle convection.
What process is cool air acts as a barrier over which warmer and less dense air rises?
Frontal wedging
What causes the convection current to flow up at a point in the system?
When a material becomes hot enough, it rises because it less dense.
What process occurs in the hot pliable mantle rock beneath the earths plates?
Convection. The same as the shimmering above a hot road in summer, heated material is less dense and rises over cooler material.convection currents
Liquid magma flow upward through the crust because it is less dence than the solid material around it?
less dense than the solid material around it
When hot and cold air meet the hot air rises to the top but which process causes the hot air to rise?
hot air rises because it is less dense than cold air..this occurs by the process of convection
Why does corks below the water rise to the surface?
Cork consists of a material which is lighter, or less dense than water so it naturally rises to the surface.
How does the temperature and density drive the convection currents in the mantle?
Temperature differences in the mantle drive convection currents because warm material is less dense and rises, while cooler material is more dense and sinks. This movement creates a circular flow as the cooler material sinks and gets heated, while the warmer material rises and cools down. The density variations caused by the temperature differences are a key driver of convection in the mantle.
Does magma produce new material when it rises from an ocean ridge?
Yes, when magma rises from an ocean ridge, it can produce new material through a process called seafloor spreading. As the magma reaches the surface, it cools and solidifies, forming new oceanic crust. This process contributes to the continuous expansion of the seafloor and the formation of new crustal material.
