Font size
WorksheetsWater Quality Testing and Data Analysis
Total questions: 20
Worksheet time: 12mins
What does a pH level below 7 indicate about water?
It is neutral
It is acidic
It is basic
It is alkaline.
High levels of nitrates and phosphates in water often come from ______.
Industrial waste
Fertilizer runoff
Urban development
Natural springs.
What was the main issue in the Flint Water Crisis in 2014?
High levels of nitrates
Low pH causing lead contamination
High coliform bacteria levels
E. coli outbreak
In the Ganges River case study, untreated sewage and industrial waste led to high levels of what?
Nitrates
Phosphates
Coliform bacteria
Lead
The Lake Erie Algal Bloom in 2014 was caused by runoff containing high levels of _______.
Lead
Nitrates and phosphates
Coliform bacteria
E. coli
What is the significance of pH in water quality?
It indicates the presence of heavy metals.
It is important for pipe safety and chemical reactions in water.
It measures the amount of dissolved oxygen.
It shows the level of nitrates.
Nitrates & Phosphates can cause harmful algae blooms and oxygen depletion in bodies of water such as ______.
Lake Erie
Amazon River
Nile River
Mississippi River
Dissolved Oxygen (DO) is essential for aquatic life and is affected by ______.
temperature changes
pollution and stagnation
sunlight exposure
water flow
Coliform Bacteria indicates ______ contamination.
chemical
sewage or animal waste
mineral
thermal
Dissolved oxygen, pH, nitrates, and salinity are _____________ factors used to determine water quality.
physical
chemical
biological
The health of a water system is determined by the balance between what variables (choose all that apply)?
physical
physiological
biological
chemical
2. What is Dissolved Oxygen?
The amount of oxygen in the water.
The clearness or cloudiness of the water.
The amount of heat in the water.
The acidity of the water.
What water quality standard pertains to bacteria levels?
dissolved oxygen levels
fecal coliform levels
nitrate levels
What 2 important nutrients are tested for in a body of water?
nitrates and phosphates
dissolved oxygen and pH
CO2 and O2
What should a farmer do if the river water used for irrigation is discolored and has a strange odor? Select TWO answers.
Switch to rainwater harvesting
Install a filtration system for the river water
Test the river water for contaminants
Seek alternative water sources such as groundwater
During a class project, Evelyn and Arjun observed that nutrient pollution in a local pond led to the phenomenon known as "eutrophication." Explain how this occurs.
It increases the water's pH level.
It causes a rapid growth of algae, which depletes oxygen in the water.
It reduces the water temperature.
It increases the water's salinity.
Which water quality test will best determine the disruption of photosynthesis caused by cloudy water conditions from sedimentation?
Temperature
Salinity
Dissolved oxygen
pH
Turbidity
The majority of aquatic creatures prefer a pH range of 6.5-9.0. If it is too low or high they will die
True
False
