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Unit 1 Topic 3

Vocab-Water

TermDefinition
Adhesion That water molecules stick to other materials.
Cohesion Refers to the occurrence of water sticking to other water molecules via hydrogen bonds.`
Polar molecule A compound with one negatively charged side and one positively charged side is called a Polar molecule.
Hydrogen bond Side with hydrogen atoms (positive charge) attracts the oxygen side (negative charge) of a different water molecule.
Surface tension Water has a thin "skin" on its surface due to the water molecules sticking together. Because of this surafce tension, water tends to clump together in drops rather than spread out in a thin film.
Capillary action Cohesion and Adhesion work together to allow water to travel against gravity and move up a plant stem.
Specific heat capacity Is the amount of heat required to change the temperature. of a unit mass of a given substance by a unit amount (usually a degree).
Expansion upon freezing An increase in volume with the same mass leads to a decrease in density.
Universal solvent Water is called a universal solvent because it dissolves more substances than any other liquid. This means that whenever water goes, either the ground or through living organisms.
Created by: user-2051545
 

 



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