WorksheetsWater
Total questions: 50
Worksheet time: 25mins
How old is water?
4.6 billion years old
6.8 billion years old
37 million years old
6000 years old
How much water do humans need each day?
2.5 quarts
1 gallon
3 cups
2 quarts
How many gallons of water do America use a day?
100
10
24
50
What percent of your blood is made of water?
92%
50%
38%
86%
How much water is on earth?
338 million cubic miles
3.4 trillion gallons
76% of the world is water
most water is in the atmosphere
What percent of the world's human population don't have access to fresh water?
20%
50%
80%
40%
What percent of freshwater is available for humans?
.07%
3.5%
96%
28%
What percent of the world is salt water?
96.5%
3.5%
28%
.07%
What percent of the world's water is fresh water?
3.5%
96.5%
.07%
28%
On average, how salty is the world's oceans?
33 to 37 ppt
<16.5 ppt
>3 ppt
280 ppt
Water cannot be destroyed.
True
False
What do we call water that is safe for humans to drink?
potable water
distilled water
brackish water
fresh water
What do we call pure H2O?
Distilled water
Potable water
Fresh Water
Brackish Water
What is water called when it is a mix of fresh and salty water? Such as where a freshwater stream meets the ocean?
brackish water
fresh water
potable water
distilled water
From what source is water safest to drink?
ground water
surface water
rain water
still / non-moving water
What three things give hard water its orange and gritty characteristics?
Iron, magnesium, calcium
iron, lead, rust
Iron, magnesium, copper
Sulfur, Iron, Boron
What is another name for the water cycle?
hydrological cycle
transportation cycle
dendrology cycle
Condensation cycle
What is the nutritional content of water?
zero
high
depends on the source
depends on how its filtered
What is it called when water is attracted to itself?
Cohesion
adhesion
surface tension
condensation
Why are some animals able to walk on the top of water and why does water build up in a class before spilling over the sides?
surface tension
it doesn't
condensation
adhesion
Water molecules tend to shrink as then change from gas to liquid but increase as they change from liquid to solid.
True
False
In what state are water molecules the smallest?
liquid
gas
solid
What are the three main actions or events that happen in the water cycle?
Evaporation, condensation and precipitation
evapotranspiration, deposition, precipitation
evaporation, accumulation, precipitation
Hale is an example of what?
deposition
condensation
accumulation
What is sublimation?
solid to gas
gas to solid
liquid to gas
What is an oxbow or Logan?
a lake that use to be a river
a small river
a wetland
an aquifer
What is the difference between ground water and an aquifer?
an aquifer in a huge underground lake
an aquifer has sand and gravel and rock in it
ground water is found under aquifers
they are the same
How are aquifers recharged or refilled?
all the them
diffuse infiltration
point infiltration
artesian wells
What is a tributary?
a stream the flows into another stream
the headwaters of a river
the delta or end of the river
a large river
What is a river delta?
the mouth or end of the stream where it breaks into smaller streams
the beginning of the stream
the headwaters of a stream
What is an estuary?
where a freshwater stream meets a body of saltwater
a sharp bend in the river
the mouth of the river
the source of the river
Typically headwaters have what kind of organisms?
Plants, large fish, burrowing macro invertebrates
algae, plankton, and collector macro invertebrates
benthic bacteria, shredder and sprawlers macro invertebrates
small fish, collector invertebrates, bacteria
What kind of organisms are considered drifters?
algae, plankton, and bacteria
plants, benthic bacteria, fungi
fish, mammals and insects
DOM, CPOM, FPOM
Why are some parts of a river like the Benthic Zone of a lake?
little sunlight
same type of bacteria
larger concentration of oxygen
warmer temperatures in winter
What do all bogs have (that lakes and wetlands don't)?
peat
circulation
trees
high oxygen
What do bogs not have that lakes and wetlands do?
circulations
low levels of acidity
high nutrient content
sunlight
Sphagnum moss is an indicator that you are in a
bog
swamp
marsh
estuary
What is limnology?
study of lakes
study of biomes
study of water quality
study of streams
Mark the three different types of lakes.
Spring
drainage
seepage
runoff
What zone of the lake has the most life?
Littoral Zone
Benthic Zone
Eutrophic Zone
Limnetic Zone
What zone of the lake is typically the largest?
Limnetic Zone
Littoral Zone
Benthic Zone
Euphotic Zone
What zone of the lake is the darkest?
benthic zone
littoral zone
euphotic zone
limnetic zone
How may watersheds are in MN?
3
2
1
4
What is the warmest zone of the lake in winter?
Littoral zone
Limnetic zone
Benthic zone
Euphotic zone
At what degree does water start to sink?
4° C
32° C
0° C
8° C
What is turbidity?
The amount of suspended solids in water
The clarity of water
Th quality of water
all of these
Why does MN have three distinct biomes?
Precipitation, evotranspiration, and temperature
Continental divides, watersheds, and temperature
fire, logging, and mining
lake superiors impact on the climate of MN
The accumulation of too much nitrogen and phosphorus in a lake can lead to?
eutrophication
bioaccumulation
low circulation
increased acidification
When chemicals such as pesticides and heavy metals build up in the bodies of apex predators that is called...
bioaccumulation
eutrophication
diversification
stratification
Cold water can hold more oxygen than warm water.
true
false
