Water Testing

Which beaker in the image has the highest turbidity?

• A

• B

• C

• D

Which beaker in the image has the lowest turbidity?

• A

• B

• C

• D

Tags

NGSS.MS-PS1-2

What does Dissolved Oxygen mean?

• How much acid is in the water

• How cold the water is

• How much hydrogen is in the water

• How much oxygen is in the water

Tags

NGSS.MS-LS1-6

pH value of less than 7 is considered to be

• polluted.

• basic.

• like drain cleaner.

• acidic.

When determining water quality, what measurements should you test? Select all that are correct.

• Temperature

• pH

• Turbidity

• Salinity

Water that is contaminated with lead will have a high ______.

• conductivity

• nitrates

• pH

• water hardness

Tags

NGSS.MS-PS1-2

The residents of a suburban neighborhood have been experiencing foul-smelling tap water for several weeks. They suspect contamination and are concerned about the safety of their drinking water. What action should the residents take to address the issue with their tap water? Select TWO answers.

• Install a cheap water softening system.

• Contact the local water utility for testing.

• Boil the tap water before consumption.

• Use bottled water for all household purposes

• Ignore the issue as it might resolve on its own.

What piece of equipment did we use to measure turbidity?

• a chemical test

• bioidicators

• a turbidity tube

• turbidity sensor by measuring light scattered by the sample at 90 degrees

What 2 important nutrients are tested for in a body of water?

• nitrates and phosphates

• dissolved oxygen and pH

• CO₂ and O₂

pH greater than 7 is considered to be

• neutral.

• basic.

• acidic.

• polluted.