The shape of a convection current would be
circular
. Convection currents are caused by the very hot material at the deepest part of the mantle rising, then cooling, sinking again and then heating, rising and repeating the cycle over and over.
Which describes convection current?
A convection current is
a process that involves the movement of energy from one place to another
. It is also called convection heat transfer. … The heat energy can be transferred by the process of convection by the difference occurring in temperature between the two parts of the fluid.
What is a convection current when is it formed?
Convection currents are the
result of differential heating
. Lighter (less dense), warm material rises while heavier (more dense) cool material sinks. It is this movement that creates circulation patterns known as convection currents in the atmosphere, in water, and in the mantle of Earth.
What is the pattern that convection currents take?
Convection currents are
circular patterns
that move air and liquids as a result of unequal heating and cooling. Hot air rises because it is less dense and then sinks as it cools. In the investigation, students observe hot water rising and then the cold water sinks.
Which describes how convection works?
Convection occurs
when particles with a lot of heat energy in a liquid or gas move and take the place of particles with less heat energy
. Heat energy is transferred from hot places to cooler places by convection. Liquids and gases expand when they are heated. … The denser cold liquid or gas falls into the warm areas.
Why is convection current important?
Convections currents in the earth’s mantle are thought to be
the driving force of plate tectonics
. Where the hot magma is brought near the surface by the convection currents a divergent boundary is created. The divergent boundaries form new oceans and widen existing oceans.
How do you create a convection current?
- Fill the plastic container 2/3 full of room temperature water.
- Let the water sit for 30 seconds or until it is completely still.
- Place a blue ice cube at one end of the plastic container.
- Add two drops of red food coloring to the water at the opposite end of the plastic container.
What do convection currents cause?
Convection currents describe the rising, spread, and sinking of gas, liquid, or molten material caused
by the application of heat
. … Tremendous heat and pressure within the earth cause the hot magma to flow in convection currents. These currents cause the movement of the tectonic plates that make up the earth’s crust.
What set the convection current in water?
Answer: convection currents are the result of
differential heating
. Lighter warm material rises while heavier cool materials sinks. It is the movement which creates circular patterns known as convection currents in water.
What is the effect of convection currents?
Convection currents within the Earth’s mantle are
movements of the magma that are less dense, therefore they rise
. As they move away from the Earth’s heat source, the core, the magma cools off and becomes more dense, causing it to sink.
What is the role of core in the convection current?
Magma in the Earth’s mantle moves in convection currents. The hot
core heats the material above it, causing it to rise toward the crust, where it cools
. The heat comes from the intense pressure on the rock, combined with the energy released from natural radioactive decay of elements.
What is a convection cycle?
Convection is
the rising motion of warmer areas of a liquid or gas
, and the sinking motion of cooler areas of liquid or gas, sometimes forming a complete cycle.
How do convection currents move?
Convection currents happen in fluids with a
heat source
. Hot liquid or gas near the heat source becomes hotter and less dense, so moves upwards. This forces the cooler stuff at the top to move back down. As the hot molecules move up, they cool down and begin to drop.
How does convection work simple?
Convection is a way in which heat travels. … Natural convection occurs
when fluids are heated
. When the fluid molecules are heated, the fluid becomes larger and lighter. The heated molecules take up more space and rise to the top, while the cooler molecules sink to the bottom.
What is the fundamental process behind convection?
Cooling Your Body
Convection occurs when
heat is carried away from your body via moving air
. If the surrounding air is cooler than your skin, the air will absorb your heat and rise. As the warmed air rises around you, cooler air moves in to take its place and absorb more of your warmth.
