Water Treatment Quiz

What does flocculation mean?

• Bacteria and other solids settle to the bottom.

• Solids form large clusters (flocs) making them easier to remove

• When wastewater begins its path to treatment

• Iron and other chemicals are added to water

What is sublimination?

• Solid to Liquid

• Solid to gas

• Liquid to gas

• Gas to liquid

Tags

NGSS.MS-PS1-4

What is an aquifier?

• Water from precipitation and snowmelt that flows over Earth’s surface

• Water that seeps through soil and cracks in rocks.

• a geological formation of loose rock or soil that is

  saturated with groundwater

• the depth at which loose rock and soil below Earth’s surface are saturated with water

Tags

NGSS.MS-ESS3-1

___________ is water that we have used, but doesn’t have any toxic chemicals, or excrement.

• Greywater

• Blackwater

• Wastewater

• Stormwater runoff

Toilet water is...

• Grey water

• Black water

• Clean water

• Run off

There are 3 states of matter (solid, liquid & gas). How many does water fall into?

• 0

• 1

• 2

• 3

In the water treatment process, how are micro-organisms killed?

• large objects are removed

• the water goes through a charcoal filter

• alum is added

• chlorine or ozone is added

___________is a buried, watertight tank designated and constructed to receive and partially treat raw domestic sanitary wastewater.

• septic tank

• intake tank

• coagulation tank

• storage tank

Is water a naturally pure substance?

• yes

• no

This is a picture of what?

• Water as a liquid

• Water as a solid

• Water as a gas

• Coagulation

Tags

NGSS.MS-PS1-4

NGSS.MS-PS3-4