EARTH’S INTERNAL HEAT SOURCES PDF
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James
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This document discusses the sources of Earth's internal heat. It covers topics such as radioactive decay, frictional heating, and gravitational compression. The document also includes a basic explanation of the Big Bang.
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James 1:1-4 EARTH’S INTERNAL HEAT SOURCES Inner Core: Why does earth no longer gets bigger? Solid layer of metal. atmosphere (sinusunog nya ung ibang debris) Outer Co...
James 1:1-4 EARTH’S INTERNAL HEAT SOURCES Inner Core: Why does earth no longer gets bigger? Solid layer of metal. atmosphere (sinusunog nya ung ibang debris) Outer Core: jupiter attracts big meteors and debris Liquid layer of metal. gas giant kaya di sya lalaki with stones Responsible for the Earth's magnetic field. not a terrestrial Mantle: Largest layer. everything in space moves in circular motion which makes them Made up of hot, dense rock. circle sphere in shape Crust: Thinnest layer. DECAY OF RADIOACTIVE ELEMENTS: Composed of continental and oceanic crust. Heat from the spontaneous breakdown of atomic nuclei. Releases energy and matter through the decay of parent Sources of Earth's Internal Heat: isotopes into daughter isotopes. ineemit naturally Contributes significantly to Earth's internal heat. have 4 types radioactive: plate tectonics emits radiation planet temperature (thermoregulation) spontaneous breakdown recycling of minerals half-life: internal heat is energy source time it takes for half of an element to decay (geothermal powerplant) number of protons and electrons are the same isotopes: BIGBANG parent isotope (parent element) very first source of heat radioactive how universe started gives off heat & daughter isotope the most acceptable theory half-life of uranium: 4.5B years theory of everything explosion, sub-atomic something na sumabog then FRICTIONAL HEATING after this, nahati sa diff steps Heat produced from friction between outer core and the Inflation: yung maliit na tuldok, nag expand mantle. Protons form protons Increases with depth as pressure rises within the Earth. Nuclear Fusion - neutron Produces extra heat Neutral Hydrogen forms hydrogen + hydrogen = helium (2nd sa pt) GRAVITATIONAL COMPRESSION modern universe (13.8B years old) Massive pressure from overlying materials compresses the core, generating heat through a process called adiabatic heating. Convection Current (circular) source of gravity: outer core as mas malaki mass nya copared heat and pressure have a direct relationship to the inner core why gravity causes heat? when there’s immense pressure sa PRIMORDIAL HEAT: kanya, nagp produce sya ng heat Heat remaining from the early stages of the planet. the inner core won’t explode as there are layers that surrounds Originates from the process of accretion, where gases it, and the pressure are all equally distributed from diff and dust were attracted by gravitational energy, directions forming the Earth and its molten core, which traps heat. PHASE CHANGES 1. liquid iron cools Accretion 2. releases heat how earth is made 3. heats surrounding solid iron melting it