Water Quality Testing and Analysis

Water Quality Testing and Analysis

Assessment

Interactive Video

Chemistry

9th - 10th Grade

Hard

Created by

Patricia Brown

FREE Resource

The video tutorial demonstrates various tests on Hill Country purified water, including chlorine, hardness, pH, and metals tests. The chlorine test shows no presence, while the hardness test reveals two grains of hardness, indicating a water softener was used. The pH test results in a level of 7.7, and the metals test shows significant iron content. The video concludes with a recommendation against using the water due to excessive iron.

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10 questions

Show all answers

1.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What factor might affect the chlorine test results for the Hill Country purified water?

The bottle is made of plastic, which interferes with the test.

The water is too hot, causing inaccurate readings.

The bottle is not full, leading to possible chlorine evaporation.

The water is too cold, affecting the test.

2.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What does a pink color indicate when testing water with a reagent?

Presence of chlorine

Presence of hardness

Presence of metals

Presence of acidity

3.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

How many grains of hardness were found in the Hill Country water?

21 grains

4 grains

2 grains

10 grains

4.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What pH level was recorded for the Hill Country water?

7.0

8.49

6.5

9.0

5.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What does a total dissolved solids reading of 25 indicate about the water?

It has not been filtered.

It has undergone reverse osmosis.

It is highly acidic.

It contains high levels of metals.

6.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What metal was prominently found in the Hill Country water?

Copper

Lead

Iron

Aluminum

7.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What is the significance of a positive 50 antioxidant level in water?

It indicates high acidity.

It shows the water is unfiltered.

It suggests the presence of harmful metals.

It is within the range considered as antioxidants.

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