Show:
Water Treatment
Water Quality & Resources
Water and Energy
pH, acids and bases
Pollution
100
Waste water carrying human or animal wastes is called ____
What is sewage?
100
The degree of purity of water, determined by measuring the substances in water besides water molecules.
What is water quality
100
Energy that is stored and waiting to be used; such a the energy of a car on top of a hill.
What is potential energy
100
A substance that puts excess H+ into water is called this.
What is an "acid"?
100
A substance that causes pollution.
What is a pollutant
200
Particles in a liquid clump together during the coagulation process producing this.
What are "flocs"
200
Term used to describe the amount of one substance dissolved in another substance.
What is "concentration"
200
The form of energy that an object has when it is moving.
What is kinetic energy
200
A substance is tested and found to have a pH of 3. It would be classified as a(n)______________
What is an "acid"
200
Some pollutants are allowed to be in drinking water if their concentration is low, such as 1ppm lead in water. "ppb" stands for _____________.
What is parts per billion
300
The step in waste treatment, when bacteria are added to help break down any remaining waste, before pumping the "cleaned" water to a tank for chlorination.
What is "Secondary Treatment"
300
The level of the minerals calcium and magnesium in the water.
What is water hardness
300
The term used to describe a man made structure that completely controls water flow in a river
What is a dam
300
Scale that goes from 0 to 14; it measures how acidic or basic a substance is compared to water.
What is the "pH scale" or "pH"
300
A specific source of pollution that can be identified. Example: a pipe pouring industrial waste into a river.
What is point source or "point" pollution.
400
The first step in waste water treatment where leaves and debris are removed, alum is added to cause coagulation, flocs settle out, and water is sent to the next step.
What is Primary Treatment
400
The process of obtaining fresh water from sea water by removing the salt.
Desalination or Distillation
400
Electricity produced by the kinetic energy of water moving over a waterfall or dam.
What is hydroelectric energy
400
A substance is tested and found to have a pH of 12. It should be classified as a ____________
What is "base" or "strong base"
400
A widely spread source of pollution that is difficult to link to a specific point of origin. Example: motor oil from roads and highways being carried with runoff into nearby lakes & rivers.
What is nonpoint pollution
500
This process involves adding Chlorine to water to kill microorganisms such as parasites, bacteria and viruses to prevent spread of disease.
What is Chlorination?
500
The practice of using less of a resource so that it will not be used up.
What is Conservation
500
Describe two advantages and one disadvantage of building a dam across a river.
Advantages: flood control, recreation on the lake that is formed, water can be used to generate electricity Disadvantages: once dry land near river is flooded when dam is built, fish can have difficulty swimming upstream, habitats are changed, dams can reduce overall amount of water flowing to downstream areas.
500
The math term used to describe the kind of scale that the pH scale is, since each pH number is ten times greater than the one below it.
What is "logarithmic".
500
The term used to describe how pollutants can increase in the body tissues of living organisms, with increasing amounts as you move up the food chain to the top predator.
What is biomagnification