Water Quality

Question 1

Hard and Soft Water

Answer 1

Hard water- water that has a high amount of dissolved salts and minerals
Soft Water- Water that has a low amount of dissolved salts.

Question 2

What determines water quality

Answer 2

Temp, sediments, total dissolved salts,
Rate of flow, turbidity, Toxic
substances,
oxygen content, pH, bacteria,
odour, phosphorus,
color, nitrogen, (Pg. 453)

Question 3

Toxic Sustances

Answer 3

Substances that people add to the water that are not naturally there

Question 4

Acid Rain

Answer 4

Rain with dissolved sulphur dioxide and nitrogen oxide in the atmosphere
This rain has a pH of under 5.6, with the lowest being 2.0
Sometimes this rain is more acidic than vinegar

Question 5

pH scale

Answer 5

A scale that determines the acidity of a substance

Question 6

What scientist look for in the tests

Answer 6

Results tell scientist what is in there and in what amount
Especially toxic chemicals and metals.
With this they can now address the water
Ppt -parts per trillion