What does chlorination do to the water?

• Removes microorganisms
• Cleans the water
• Makes the water taste nice
• Removes twigs and sediment

Tags

NGSS.MS-PS1-2

NGSS.MS-PS1-5

What are two goals that our water treatment plant fulfill?

• Clean and disinfect the water

• Boil and evaporate the water

• Remove the animals and plants

• Add chemicals and remove pesticides

Why is fluoride added to the water?

• to kill the bacteria
• to raise the pH
• to prevent cavities
• to improve the taste of water

The water treatment plant operates

• 24 hours a day, 5 days a week

• all the time

• every day, but not at night

• not on holidays

During secondary treatment in the aeration tanks, what is working on the sewage waste?

• micro-organisms
• humans
• air titration
• oxidation/reduction

Tags

NGSS.MS-LS2-4

What are two things that water treatment plants need to do?

• Clean and disinfect the water
• Boil and evaporate the water
• Remove the animals and plants
• Add chemicals and remove pesticides

Tags

NGSS.MS-PS1-2

NGSS.MS-PS1-5

Where is most of the freshwater found on Earth?

• lakes
• glaciers
• oceans
• rivers

Tags

NGSS.MS-ESS2-4

NGSS.MS-ESS3-1

Approximately what percentage of Earth's water is SALT water?

• 97 %
• 71%
• 30%
• 3%

This picture shows....

• irrigation

• aeration

• chlorination

• filtering

Tags

NGSS.MS-ESS2-4

NGSS.MS-LS2-3

When is fluoride added in water treatment?

• First step, before filtering

• Second step, with the alum

• In the middle of the treatment

• Next to the last step, just before it gets to your home

Tags

NGSS.MS-PS1-5