Fresh Water and Salt Water
Contaminants in Water
Testing Water Quality
Chapter 12
Wastewater Treatment
100
_____% of water on Earth is fresh water
What is 3%
100
An undesirable substance in a mixture
What is a contaminant?
100
This instrument is used to measure turbidity
What is a Secchi disk?
100
An average of weather conditions in an area over 30 years
What is a climate
100
A network of pipes that transports dirty or used water
What is a sewer system?
200
Salinity is a characteristic of which type of water.
What is salt water?
200
The two main categories of contaminants in water
What are biological and chemical contaminants?
200
The scale used to measure the acidity in water
What is the pH scale?
200
Temperature, cloud cover, wind speed and precipitation are used to determine this.
What is the weather?
200
Water used in cooking falls into this catagory of wastewater.
What is greywater?
300
The main reason why removing salt from salt water is so expensive.
What is energy consumption?
300
The town where seven people died after ingesting E.coli found in the drinking water supply
What is Walkerton, Ontario
300
This factor of water quality can be tested by running an electric current through a water sample.
What is salinity?
300
The name of this transfer of thermal energy
What is convection?
300
Wastewater is divided into these two catagories.
What is greywater and blackwater?
400
This type of technology removes salt from salt water to create fresh water
What is desalination?
400
Adds nutrients to soil but is considered a contaminant in drinking water.
What is fertilizer?
400
Nuclear power plants and some industries contribute to this type of water pollution.
What is thermal pollution?
400
This phenomena is reducing water levels in the Great Lakes
What is global warming?
400
The name of a system of wastewater treatment consisting of a drainage bed and tank
What is a septic system?
500
Most of Earth's freshwater is locked up in these very dense blocks of ice
What is a glacier?
500
This type of rain has cost the Canadian forestry industry hundreds of millions of dollars.
What is acid rain?
500
This chemical is added to drinking water to kill unwanted organisms
What is chlorine?
500
These large water bodies moderate the climate the Canadian cities situated on their shores.
What are the Great Lakes?
500
This stage of the wastewater treatment is used in large cities to remove organic matter from wastewater.
What is secondary treatment?