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A very low mass particle formed in solar fusion reactions that reacts only weakly with matter.
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Neutrino
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The state of heaving a balance between inflowing and outflowing heat.
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Thermal equilibrium
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The process, similar to conduction, by which energy moves from the solar core to the convective layer.
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Radiative diffusion
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The process that powers the sun and hydrogen bombs
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Thermonuclear fusion
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Dark areas on the sun that are cooler than the surrounding photosphere. a region in the photosphere where the sun's magnetic field erupts through the surface. is cooler and darker by comparison.
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Sunspots
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A fusion process in which protons bond together to ultimately form helium
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Proton-proton chain
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The relationship that describes how matter equates with energy
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E=mc2
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The state of having a balance between inward and outward pressures in a gas. when material has an unchanging pressure gradient. that is, the pressure is not the same throughout but whatever it is at any point, it is not changing with time.
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Hydrostatic equilibrium
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The 22 year period on the sun during which sunspots increase, decrease, change polarity, increase and decrease again
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Sunspot cycle
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The surface of the sun
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Photosphere
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The layer of the sun just above the photosphere
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Chromosphere
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A change in the appearance of the sun at the edge of the solar disk
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Limb darkening
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The high temperature outermost layer of the sun
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Corona
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When material is heated and moves taking the heat energy with it
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Convection
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Hot cells of gas that rise and fall in the photosphere
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Granules
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