Worksheets7.5 Test Review 2025
Total questions: 20
Worksheet time: 10mins
Define the term "Contaminant" in the context of drinking water.
Substances besides water molecules that are in drinking water
Care and management of natural resources
The proportion of a substance dissolved in water
A process that improves water quality
What does "Conservation" refer to in terms of natural resources?
The proportion of a substance dissolved in water
Care and management of natural resources
Substances besides water molecules in water
A process that improves water quality
What is "Concentration" in the context of water?
A process that improves water quality
Substances besides water molecules in water
The proportion of a substance dissolved in water
Care and management of natural resources
Which of the following is an activity that uses water other than drinking?
Reading
Bathing
Sleeping
Running
Which is a common source of drinking water?
Desert
Well with groundwater pump
Mountain
Forest
How can people conserve water?
Let it mellow (don’t flush)
Leave faucets running
Take longer showers
Use more water for cleaning
What is an example of technology used to make drinking water safe?
Water treatment facilities
Gasoline engine
Coal plant
Nuclear reactor
How can contaminants get into drinking water?
From factories
From the sun
From the wind
From UV light
What is a point source contaminant?
Source is more difficult to pinpoint
Original source
Source from our environment
Source from the sun
What is a nonpoint source contaminant?
Source is more difficult to pinpoint
Original source
There is no such thing as a nonpoint source contaminant
Source from the sun
Which activity does not use water?
Bathing
Washing dishes
Reading
Watering plants
What is a method to conserve water at home?
Shorter showers
Longer baths
Running water continuously
Ignoring leaks
Which is NOT a way that people get their drinking water ?
In jugs
ground water pump
City provides it.
In envelopes
What is a tool used to test water quality?
Secchi disk
Thermometer
Barometer
Anemometer
What is the first step in the process of getting safe drinking water to the house in the scenario?
Water is stored in a water tower.
Groundwater is pumped to the surface.
Water is distributed to homes.
Water is treated at the facility.
How does the water travel from the water treatment facility to the community?
Through open channels
Through pipes
Through rivers
Through trucks
What is the final destination of the water in the supply system?
The water treatment facility
A reservoir
Homes and businesses
A lake
Use the model to describe the path the contaminant follows to get to the house.
The factory releases contaminants through pipes into the lake. The house takes in water from the lake through the pipes and brings contaminants to the house with it.
The factory releases contaminants directly into the air, which then enter the house.
The factory releases contaminants into the ground, which are absorbed by plants.
The factory releases contaminants into the ocean, which then evaporate and rain down on the house.
Of the two contaminants, which contaminant should be a priority when considering how to improve the safety of a drinking water source?
Lead, it is above the MCL which means they are in violation of EPA regulations
Arsenic, it is below the MCL
Both are equally important
Neither, as they are not harmful
In relation to the houses on South River, is Site A considered upstream or downstream?
Upstream
Downstream
Neither
Both
