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ESS.8.2.1 vocab

Hydrosphere vocabulary - water properties

TermDefinition
Adhesion When the atoms or molecules of a substance stick to other substance
Aquifer A body of rock that can contain water or allow water to flow through it
Cohesion When the atoms or molecules of a substance stick together
Condensation When a gas transforms into a liquid as a result of cooling
Density Mass per unit volume; the amount of matter in a given amount of space.
Evaporation When a liquid transforms into a gas as a result of heating
Hydrosphere All of the waters on and under the Earth's surface
Permeability Measure of how much water can flow through a substance
Polarity Having a positive and negative end (pole) (i.e. Water is a polar molecule because it has a negatively charged side – the oxygen atom – and a positively charged side – the two hydrogen atoms)
Porosity The amount of available empty space in a rock
Precipitation Rain, snow, sleet, hail
River Basin An area of land drained by a river and its tributaries much like a bathtub catches all of the water that falls within its sides
Runoff The draining away of water (or substances carried in it) from the surface of an area of land, a building, or structure, etc.
Salinity A measure of the amount of salt in a body of water
Solvent A liquid or a gas that dissolves another substance
Specific Heat How much heat energy it will take to raise or lower the temperature of an object. Water has a high specific heat, meaning it takes a lot of energy to change the temperature of water.
Surface Tension Atoms and molecules in the surface of a substance exhibit the property of cohesion
Tributary A freshwater stream that feeds into a larger stream, river or other body of water
Water Cycle The journey water takes as it circulates from the land to the sky and back again.
Water Shed An area or ridge of land that separates waters flowing to different rivers, basins, or seas
Created by: dsmith23
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