2-25 - Earth Materials (Cont'd) Water Very important in...

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Earth Materials (Cont’d) 16:52 Water Very important in geological processes. Erosive agent Promotes melting of rock Transports sediments and chemicals Dissolves some minerals Destabilizes slopes Water Properties Can exist as solid, liquid or gas on Earth’s surface. Moves from surface and subsurface to atmosphere (water cycle) Water Properties Has high heat capacity: o Takes in heat when evaporating, cools atmosphere o Releases heat when it condenses, heats atmosphere. o Transfers heat and drives weather. Water Properties Dipolar molecule: o Both negative and positive charges makes water the “universal solvent” Water Properties Dipolar molecule: o Bonding of dipolar molecules produces a solid less dense than liquid. o Ice floats, insulates underlying water, oceans do not completely freeze Energy Sources of Hazards
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Energy Capacity to do work Many types of energy Can be converted from one form to another Types of energy:
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2-25 - Earth Materials (Cont'd) Water Very important in...

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