WorksheetsPLTW - ES - Unit 2
Total questions: 25
Worksheet time: 17mins
The amount of available fresh water on Earth suitable for human consumption is
5%
Less than 1%
10%
30%
Which of the following is a heavy metal that can leach off of old pipes into water supplies?
Copper
Lead
Iron
All of these
Why is it important to routinely test water that is used for drinking or recreational purposes?
water treatment plants are unreliable
drinking water may acquire minerals
drinking water may take on contaminants
drinking water must always have the same mineral content
The safe range for pH is
6 - 8
0-4
6.5 - 8.5
8-14
.
If a laboratory protocol asks you to add 500 uL of water to a tube, which micropipette should you use?
p20 pipette
p1000 pipette
p200 pipette
p50 pipette
What is sustainability?
Involving methods that do not completely use up or destroy natural resources.
The strength and vitality required for sustained physical or mental activity.
The condition or quality of being true.
A foreign agent (protein, toxin, or other substance) that stimulates an immune response.
In 2008 the National Academy of Engineering of The National Academies Press proposed and published 14 Grand Challenges for Engineering, which one is not a grand challenge:
Make solar energy economical
Reverse-engineer the brain
Provide access to clean water
Manage Gas Prices
Which of the following freshwater global distribution choices has the least water volume?
Rivers
Lakes
Ice caps, glaciers, permanent snow
Groundwater
Rules of behavior based on ideas about what is morally good and bad is called:
Problems
Ethics
Science
Reciprocate
What is the water footprint?
water for cellular processes
water for travel
water required by our body
water quantity required to produce goods & services
A non-industrialized poor country that is seeking to develop its resources by industrialization is called a:
Developed Country
Developing Country
A physical means of removing contaminants
incubation
purification
remediation
filtration
Which of the following would be an example of surface water?
A Lake
An Aquifer
A well
A Sewer
Which of the following is a term used to refer to water that is suitable for drinking.
Potable
Palatable
Purification
Phytoremediaton
Which of the following is a heavy metal that can leach off of old pipes into water?
copper
lead
iron
All of these
The safe range for nitrates in drinking water is
0 ppm
0 - 10 ppm
10+ ppm
0-100 ppm
Which of the following freshwater global distribution choices has the greatest water volume?
Rivers
Lakes
Ice caps, glaciers, permanent snow
Groundwater
What is a water footprint?
A foot made out of water
How much water you use everyday
How much water you don't use everyday
How much water you drink
This is a p20 micropipette.
How many microliters will this micropipette take up?
500 uL
50 uL
5.0 uL
0.5 uL
______ is the measure of suspended particles in the water.
dissolved oxygen
turbidity
phosphate
nitrates
pH is the measurement of
how acidic or basic a solution is.
just the acidity of a solution.
how acidic or basic the atmosphere is.
Non of the above.
Presence of fecal coliform bacteria suggests that
a factory polluted the river
a nearby treatment plant added chlorine to the waste water
the water is safe for drinking
untreated animal waste contaminated the water
When dialing in a volume on a P-20 what should it read if you are putting in 9.2uL?
9
2
0
0
9
2
9
0
2
1
9
2
