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Water Vocabulary

27 words to ensure understanding of the Water Unit

TermDefinition
adhesion When water molecules stick to other types of molecules. Ex: dew on grass or a spider web, raindrops on a windshield.
capillary action upward motion against gravity due to water's adhesion and cohesion properties.
cohesion The attraction of water molecules to other water molecules.
surface tension Water's ability to resist rupture when placed under tension or stress. Ex. water strider walking on a pond
insoluble Incapable of being dissolved Ex: Oil in water
soluble Able to be dissolved Ex: Kool-aid powder, sugar, or salt in water.
solute Substance being dissolved Ex. Sugar mixed with water.
solvent A substance that can dissolve another substance. Ex: Water mixed with salt.
solution A mixture in which one substance is distributed evenly throughout another substance. Kool-aid or jello for example.
density The relationship between the mass of the substance and how much space it takes up (volume).
polarity The two hydrogen atoms (slightly positive charge) and one oxygen atom (slightly negative charge) within water molecules form polar covalent bonds.
polar molecule When one end of a molecule is slightly positive and one end is slightly negative.
nonpolar When atoms equally share electrons.
evaporation The process by which water changes from a liquid to a gas/vapor.
condensation The change of water from its gaseous form (water vapor) into liquid water.
transpiration Evaporation of water from plant leaves.
precipitation Water released from clouds in the form of rain, sleet, snow, or hail.
infiltration To pass into or through a substance by filtering or permeating
collection An amount of material accumulated in one location
thaw To become warm enough that snow and ice melt
freeze To change (a liquid) into a solid as a result of a reduction in temperature
chemical weathering What happens when rocks are broken down and chemically altered.
physical weathering The process that breaks rocks apart without changing their chemical composition.
weathering The breaking down or dissolving of rocks and minerals on Earth's surface.
erosion Removing soil and rock from one location on the Earth's crust, to another location where it is deposited
corrosion The process or effect of destroying, weakening, or wearing away little by little
ice wedging Cracks in rock or other Earth materials caused by water freezing and expanding, causing the cracks to enlarge and eventually break.
Created by: kbender
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