Question

PLEASE HELP ASAP! MEDAL AND FAN

Question 11 (Essay Worth 5 points)

Summarize your findings from the Water Quality Lab. Be sure to include your observations and the sources of each water-quality issue you investigated.

Answer 1

@Compassionate

Answer 2

this sounds like an essay based on your findings in a class activity, and it can't be nswered unless you provide that info. No one on here can read minds.

Answer 3

Fresh Water 03: Water Quality Lab

Text Version for Virtual Lab for Water Quality Testing

Five Classifications of Water Quality:

Students complete a series of five water quality tests in this virtual lab. They can start with any category, but all five categories will be completed by the end. Students will see a microscope, and a lab kit with testing solutions and pH paper inside.

Microorganisms: Students use the virtual microscope to look for evidence of giardia or coliform. Students describe whether the bacteria are "present" or "absent" from the sample.

Microorganism Test Results
Indicator Effects Source Your Results
Giardia Digestive tract infection Fecal matter in water absent
Coliforms Serious illness or death, lower dissolved oxygen for organisms Runoff from farms, feedlots, or septic tanks present
Disinfectants, By-products, and Inorganic and Organic chemicals: All of these water quality indicators are tested using the test kit and pH paper.

Inorganic Chemicals

After performing your water tests for inorganic contaminants, you should see the following results:

Inorganic Chemicals Test Results
Indicator Effects Source Your Results
Nitrates Can lower water oxygen levels, killing fish. Can also poison babies. Fertilizer runoff from farms, lawn fertilizer, leaky septic tanks, animal waste 14.2 mg/L
Arsenic Infertility, heart and brain damage, death Semiconductors, glass manufacturing 0 mg/L
Fluoride Bone disease, kidney failure, dementia Drinking water 4 mg/L
Phosphates Interfere with digestion, stimulate algae growth Fertilizer, organic pesticides, and detergents .07 mg/L
Lead Lead poisoning, fatigue, sleep issues, colic Battery, pipe and recycling factories 0 mg/L
Organic Chemicals

After performing your water tests for organic contaminants, you should see the following results:

]Organic Chemicals Test Results
Indicator Effects Source Your Results
Benzine Anemia; decrease in blood platelets; increased risk of cancer Discharge from factories; leaching from gas storage tanks and landfills 2.01 mg/L
PCBs Skin changes; thymus gland problems; immune deficiencies; reproductive or nervous system difficulties; increased risk of cancer Runoff from landfills; discharge of waste chemicals 0 mg/L
Disinfectant and By-Products

After performing your water tests for disinfectants and by-products, you should see the following results:

Disinfectant and By-Products Test Results
Indicator Effects Source Your Results
Chlorite Irritation in nose and throat Used in drinking water to kill bacteria .8 mg/L
Bromate Kidney failure, damage to nervous system Used in drinking water to kill bacteria 0 mg/L
Chlorine Kills organisms in water and soil Used in drinking water to kill bacteria 9 mg/L
pH Test

The water sample is placed on a pH test strip. Once the color has changed on the test strip, it is matched to the corresponding color on the standard pH strip to determine the pH of the sample. Record the pH on your data table.

pH Test Results
Indicator Effects Source Your Results
pH Can kill organisms Precipitation can cause acidity, limestone can make water more alkaline 7.25
Conclusions

Based on the data and observations recorded, be sure to complete the Laboratory Report form for this lab. You will not submit this lab for a grade, but it will be referenced in upcoming assessments.

Answer 4

@Jaccy there's my findings...

Answer 5

Did you ever find an answer?

Answer 6

Yea... @kalese

Answer 7

What was it, if you don't mind me asking? @Timmyk14

Answer 8

ya i need help on the same questions too! ^_^