Water Safety

What are the three categories of factors/variables for determining water safety?

• physical, chemical and biological

• physical, strength, and chemical

• Chemical, biological and oxygen

• Biological, magical, physical

What are the three variables/factors of water safety that fall under the physical category?

• Turbidity, pH, biological

• Water movement, turbidity, temperature

• Temperature, dissolved oxygen, pH

• Water movement, pH, nitrates and phospates

Which category does pH fall under?

• Chemical

• Biological

• Physical

• None of the above

Water with a pH of 3 is considered....

• Safe to drink

• Safe to shower or bathe in

• Unsafe to drink or use

• Answer 1 and 2

Tags

NGSS.MS-PS1-2

The clearer the water is the ___________ the turbidity.

• higher

• lower

Examples of biological factors/variables that affect water safety include....

• crabs, seaweed and sharks

• algae and fish

• elephants and giraffes

• Answers 1 and 2

Which temperature would garner the safest water?

• Very hot

• Warm

• Cool

• Very cold

True or false? The higher the amount of dissolved oxygen in the water the safer the water is?

• True

• False

Is it safer to drink from a body of water that is stagnant (not moving) or moving?

• Stagnant

• Moving

When we measure the salinity of water, we are measuring...

• The amount of fish living in it

• The nitrates content

• How much water there is

• Salt content