
Treating Wastewater
Authored by Usha Subramaniam
Other
8th Grade
Used 9+ times

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7 questions
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1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Ava, Benjamin, and Mason are on a field trip to a wastewater treatment plant. They learn that the 1st step in treating wastewater is
Wastewater flows through screens to catch large particles such as food and lot of trash.
The water is pumped into open pools where air and sunlight is used to purify it.
Particles that are still present in the water settle down forming sludge
The water flows through a bed of gravel which is covered with colonies of bacteria.
2.
FILL IN THE BLANK QUESTION
1 min • 1 pt
Particle that settle at the bottom of the tank is called
3.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What is the second step in treating wastewater?
The water is pumped into open pools where air and sunlight is used to purify it.
Particles that are still present in the water settle down forming sludge.
The water flows through a bed of gravel which is covered with colonies of bacteria.
Wastewater flows through screens to catch large particles such as food and lot of trash.
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
How are large particles such as food and trash removed from wastewater?
The water is pumped into open pools where air and sunlight is used to purify it.
Particles that are still present in the water settle down forming sludge.
Wastewater flows through screens to catch large particles such as food and lot of trash.
The water flows through a bed of gravel which is covered with colonies of bacteria.
5.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What happens to the particles that are still present in the water during wastewater treatment?
Particles that are still present in the water settle down forming sludge.
The water is pumped into open pools where air and sunlight is used to purify it.
Wastewater flows through screens to catch large particles such as food and lot of trash.
The water flows through a bed of gravel which is covered with colonies of bacteria.
6.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What is the final step in treating wastewater?
The water is pumped into open pools where air and sunlight is used to purify it.
Particles that are still present in the water settle down forming sludge.
Wastewater flows through screens to catch large particles such as food and lot of trash.
The water flows through a bed of gravel which is covered with colonies of bacteria.
7.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What is the purpose of the bed of gravel covered with colonies of bacteria in wastewater treatment?
The water is pumped into open pools where air and sunlight is used to purify it.
Particles that are still present in the water settle down forming sludge.
Wastewater flows through screens to catch large particles such as food and lot of trash.
The water flows through a bed of gravel which is covered with colonies of bacteria.
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