convection definition biology
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- Convection: is the transfer of heat through fluids (gases or liquids) from a warmer spot to a cooler spot. The particles in fluids (liquids or gases) can move from place to place when heated. Convection occurs when particles with a lot of heat energy move and take the place of particles with less heat energy. Heat energy is transferred from hot places to cooler places by convection.
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CONVECTION Meaning: (meteorology) the vertical movement of heat or other properties by massive motion within the atmosphere. Classified under: Nouns denoting natural processes. Hypernyms (convection is a kind of...): action; activity; natural action; natural process (a process existing in or produced by nature (rather than by the intent of human beings))
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Convection Mantle convection is the slow creeping motion of Earth's rocky mantle caused by convection currents carrying heat from the interior of the earth to the surface. It is the driv … ing force that causes tectonic plates to move around the Earth's surface.
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What is conduction, convection, and radiation? CONVECTION : In liquids and gases, convection is usually the most efficient way to transfer heat. Convection occurs when warmer areas of a liquid or gas rise to cooler areas in the liquid or gas. As this happens, cooler liquid or gas takes the place of the warmer areas which have risen higher.
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CONVECTION Convection is the transfer of heat through the movement of a fluid, such as water or air. This type of heat transfer can occur in liquids and gases because they move freely, making it possible to set up warm or cold currents. Convection occurs naturally in the atmosphere on a warm, sunny day.he sun's energy moves through space, then through the earth's atmosphere and finally reaches the earth's surface. The sun's radiation warms the earth's atmosphere and surface and becomes heat energy. This heat energy is transferred through the atmosphere by one of three mechanisms:
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- The particles in fluids (liquids or gases) can move from place to place when heated. Convection occurs when particles with a lot of heat energy move and take the place of particles with less heat energy. Heat energy is transferred from hot places to cooler places by convection. Click here for an example of convection currents in a gas. Click here for an example of convection currents in a liquid.
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- Convection is the mechanism responsible for the vertical transport of heat in the troposphere while horizontal heat transfer is accomplished through advection. The exchange and movement of water between the earth and atmosphere is called the water cycle.
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Law of Conservation of Energy Convection definition, Physics. the transfer of heat by the circulation or movement of the heated parts of a liquid or gas. See more.
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- BLM 7.5.5. CONVECTION (teacher answers) I. Define:a) convection Convection is the transfer of heat energy which occurs when heated liquid or gas particles travel from one place to another. b) convection current Convection current is the circular pattern created when heat energy is transferred between particles. 2.
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Atmospheric convection Atmospheric convection. Atmospheric convection is the result of a parcel-environment instability, or temperature difference, layer in the atmosphere. Different lapse rates within dry and moist air lead to instability. Mixing of air during the day which expands the height of the planetary boundary layer leads to increased winds, cumulus cloud development, and decreased surface dew points. Moist convection leads to thunderstorm development, which is often responsible for severe weather throughout the world. Special threa
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Definitions &Translations Thermogenesis. Thermogenesis is the process of heat production in organisms. It occurs mostly in warm-blooded animals, but a few species of thermogenic plants exist, such as the Eastern skunk cabbage and the Voodoo lily.hermogenesis is the process of heat production in organisms. It occurs mostly in warm-blooded animals, but a few species of thermogenic plants exist, such as the Eastern skunk cabbage and the Voodoo lily.
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- Diffusion is the chemical & biological process when molecules from a material move from an area of high concentration (where there are lots of molecules) to an area of low concentration (where there are fewer molecules).
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- Convection. Convection is the transfer of internal energy into or out of an object by the physical movement of a surrounding fluid that transfers the internal energy along with its mass.pontaneous convection is driven by buoyancy for the most part and surface tension to a lesser extent. 1  exposed surface area. 2  viscosity. 3  density. 4  conductivity (when conductivity is high, there is no need for convection).
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- Convection is a type of heat transfer that is driven by the flow of liquid, or by a solid or weak material. These convection cells that flows in a circular direction are cause … d by the initial heating of earth's core.Earth is hot due to the original formation, and what keeps the heat circulating is radioactive decay.onvection is when heated air (or water) rises, and cooler air (or  water) sinks. This occurs because heating a gas (or liquid) causes  it to expand, its molecules becoming … more energetic.
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Convection Convection body. Convection is the transfer of heat from a warmer region to a cooler one by moving warm liquid or gas from the heated area to the unheated area. In a boiling pot of water, hot water in the bottom of the pot rises to the surface, leading to bubbles of heated water and sometimes steam visible on the surface. In meteorology, convection is often associated with rising air and clouds, and at times, thunderstorms.
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The Definition of a Convection Cell A source of heat is required for a convection cell to form. Fluid is warmed by the heat source and is pushed away. The fluid then begins to lose heat, and inevitably cools. This cooler, denser matter is forced back toward the initial heat source by the flow of newly heated matter.
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- noun, plural: chemoautotrophs. An organism (typically a bacterium or a protozoan) that obtains energy through chemical process, which is by the oxidation of electron donating molecules from the environment, rather than by photosynthesis. Chemotrophs obtain energy mainly from carbon dioxide and from other inorganic chemicals.
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Multiphysics Cyclopedia Note that the term convection in heat transfer usually refers to the combination of heat transfer by conduction and advection, where advection refers to heat transfer due to bulk fluid motion. In the field of transport phenomena, and also in this text, convection is synonymous with advection.
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HEAT SHIELD SOLUTION Convection is the transfer of heat energy between a solid surface and the nearby movement of a liquid or gas (such as air). As fluid motion goes more quickly the convective heat transfer increases. The presence of bulk motion of fluid enhances the heat transfer between the solid surface and the fluid.
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- Convection. 1  Convection is the transfer of thermal energy through movement of particles from one location to another. 2  Usually occur in fluids (liquids and gases) 3  Example with boiling water: 4  Water at bottom of pan is heated first. 5  Heated water expands and density decreases. 6  Heated water begins to rise.
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Ch. 3 Landforms Reading Assigments - 1 What is convection A... View Homework Help - Ch. 3 Landforms Reading Assigments from EAPS 120 at Purdue. 1. What is convection? A. a cycle of moving material formed by the rise of denser material and the sinking of less- dense material B. a cycle of moving material formed by the sinking and rising of high-density material C. a cycle of moving material formed by the sinking and rising of low-density material D. a cycle of moving material formed by the rise of less-dense ...
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What Is a Convection Cell? Convection cells in the Earth's crust are capable of building mountain ranges. Heat energy is transferred through the atmosphere by convection. The movement of molten or semi-molten rock drives the process known as plate tectonics.
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Heat transfer fundamentals: radiant versus convection heat Convection is the transfer of heat by movement of liquids or gases. Its properties are: Convection currents naturally rise as the hot medium (air in this case) expands and decreases in density and as the cool air increases in density and sinks.
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convection For example, air on a part of the Earth's surface warmed by strong sunlight will be heated by contact with the ground and will expand and flow upward, creating a region of low pressure below it; cooler surrounding air will then flow in to this low pressure region. The air thus circulates by convection, creating winds. See Note at conduction.
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- Convection is classified as natural (or free) and forced convection depending on how the fluid motion is initiated. In natural convection, any fluid motion is caused by natural means such as the buoyancy effect, i.e. the rise of warmer fluid and fall the cooler fluid. Whereas in forced convection, the fluid is forced to flow over a surface or in a tube by external means such as a pump or fan.
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Science Vocab unit 10 RADIATION can transfer energy between objects that are not in direct contact with each other. convection the movement of matter due to differences in density that are caused by temperature variations; can result in the transfer of energy as heat./ CONVECTION involves the movement of matter due to differences in density.