CH 15 1
CH 15 2
CH 15 3
CH 15 4
100

a solution that contains larger numbers of hydrogen ions than hydroxyl ions



acid

100

any substance that a solvent, such as water, holds in a dissolved state



solute

100

substance, such as water, that can dissolve other substances



solvent

100

a solution that contains a larger number of hydroxyl atoms than hydrogen atoms. Also called an alkali




base

200

substance that contains two or more kinds of atoms that are chemical bonded



compound

200

water that falls to the ground in the form of fog, rain, or snow




precipitation 

200

a solvent with substances dissolved in it




Solution

200

layer of water that shows rapid increase in salinity



halocline

300

process by which liquid water changes to a gas



evaporation

300

process of cloud formation



condensation 

300

total amount of water contained in and on the earth



water budget

300

the point at which the ocean surface touches the shoreline



sea level

400

lines that run north and south; they show position east and west of the prime meridian



longitude

400

lines that run east and west; they show position north and south of the equator



latitude

400

continuous movement of water between ocean, atmosphere, and land



water cycle

400

formed when moisture in the air absorbs chemicals



acid precipitation

500

contains two or more substances that can be separated by ordinary physical means



mixture

500

the degree of acidity or alkalinity of a solution



pH

500

a smaller part of an ocean, where two continents lie close together



sea

500

the land area through which water passes on its way to the ocean

watershed