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Sci 8:Earth's Waters

Chapter 3: Freshwater Resources

QuestionAnswer
An underground tank containing bacteria that break down sewage. Septic tank
The amount of one substance in a certain volume of another substance. Concentration
A measurement of how acidic or basic a substance is. pH
The total amount of calcium or magnesium in water. Hardness
Deposits of fine solids that settle out of wastewater. Sludge
Wastewater and the different kinds of waste in it. Sewage
The process of obtaining fresh water from salt. Desalination
A period of a few years of scarce rainfall. Drought
Using a resource wisely so that it will not be used up. Conservation
Is sewage leaking from a pipe a point or nonpoint source? Point
Is toxic waste leaking from barrels a point or nonpoint source? Point
Are chemicals from a factory being dumped into a river a point or nonpoint source? Point
Is salt being sprinkled on roads a point or nonpoint source? Nonpoint
Is fertilizer found in runoff a point or nonpoint source? Nonpoint
Chemicals intended to kill insects and other organisms that damage crops are called Pesticides
The addition of any substance that has a negative effect on water or the living things that depend on water is called Water pollution
Rain and other forms of precipitation that are more acidic than normal are called Acid rain
The form of energy of a moving object is Kinetic energy
The form of energy that water behind a dam has is Potential energy
The form of energy that is stored and waiting to be used is called Potential energy
The form of energy that flowing water has is called Kinetic energy
Created by: SJSScience
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