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This text explores crucial concepts of heat transfer, including radiation, conduction, and convection, using everyday examples like boiling soup. It explains how heat moves from warmer to cooler objects and introduces the theory of plate tectonics, highlighting Alfred Wegener’s contributions and the ideas of continental drift, sea-floor spreading, and subduction. With a focus on convection currents, this overview provides foundational knowledge for understanding the dynamic processes that shape our planet.
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As the pot of soup boils, heat transfers from the hot soup to the spoon in the pot. • Radiation from the sun heats this planet. • I touched the car and the conduction caused me to feel the heat. • Convection causes the air in the room to be the same in all parts of the room. • There is a convection current in a pot of soup, as it boils. • Alfred Wegener was the man who claimed that continental drift explained many things.
The plate moved and slammed into another plate, creating a mountain. • Plate Techtonics is a theory that gives reason to why the plates move across the earth. • Sea-floor spreading became evident while scientists mapped the ocean floor, and was later viewed by scientist while viewing the seafloor with an ROV. • Subductionis the plate boundary where the earth is being recycled.
Heat Transfer: The movement of energy in the form of heat from a warmer object to a cooler object. • Radiation: The direct transfer of energy (heat) through empty space by electromagnetic waves. • Conduction: The transfer of heat from one substance to another by direct contact of particles of matter. • Convection: The transfer of heat by movement of a fluid. • Convection current: The movement of a fluid, caused by differences in temperature, the transfer of heat from one part of the fluid to another.
Continental ‘drift: the hypothesis that the continents slowly move across Earth’s surface. • Plate: A section of the lithosphere that slowly moves over the asthenosphere, carrying pieces of continental and oceanic crust. • Plate Techtonics: the theory that pieces of Earth’s lithosphere are in constant motion, driven by convection currents. • Sea-floor spreading: The process by which molten material adds new oceanic crust to the ocean floor. • Subduction: the process by which oceanic crust sinks beneath a deep-ocean trench and back into the mantle at a convergent plate boundary.
