NEW
Font size
S
M
L
XL
WorksheetsEarth's Water Unit Test Review
Total questions: 33
Worksheet time: 16mins
Name
Class
Date
1.
Where would early settlers most likely start their communities?
a)
Near rivers or sources of freshwater.
b)
Near Ocean for easy trading.
c)
High in the mountains to hide from other settlers.
d)
Any flat land for farming.
2.
About _______% of the Earth is covered by water.
a)
62
b)
70
c)
89
d)
25
3.
______% of Earth's water is salty.
a)
Less than 1
b)
3
c)
70
d)
97
4.
_______% of Earth's water is fresh.
a)
Less than 1
b)
3
c)
70
d)
97
5.
Most of the freshwater is _____________.
a)
Satly
b)
Frozen in polar ice caps
c)
Underground
d)
In the atmosphere & living things
6.
Of the freshwater that is liquid, we get most of our drinking supply from _____________ sources.
a)
polar ice cap
b)
river & lake
c)
water vapor
d)
underground
7.
How much water is actually useable for humans and other living things?
a)
97
b)
70
c)
<1%
d)
3
8.
A watershed is an area of ___________ where all the water drains into a particular body of water.
a)
land
b)
river
c)
farm
d)
space
9.
Water flows from _________ to _________ elevation.
a)
low to high
b)
high to low
c)
high to higher
d)
low to low
10.
A _____________ separates one watershed from another.
a)
divide
b)
mouth
c)
spring
d)
flood plain
11.
The beginning of a river is called the __________.
a)
mouth
b)
source
c)
banks
d)
bed
12.
The end of a river is called the __________.
a)
mouth
b)
source
c)
banks
d)
bed
13.
A flat area of land around a river that could potentially flood if there is a lot of rain or snow melting is called a _______________.
a)
sources
b)
banks
c)
mouth
d)
flood plain
14.
An underground area that holds water in the pores between rocks, that is compared to an underground lake, is called a(n) ________________.
a)
river
b)
flood plain
c)
aquifer
d)
reservoir
15.
An _______________ is where freshwater and salt water meet and mix.
a)
wetland
b)
estuary
c)
marsh
d)
ocean
16.
The Chesapeake Bay is the largest ____________ in the USA.
a)
stream
b)
river
c)
lake
d)
estuary
17.
An estuary is a good place for animals to....
a)
raise their young.
b)
hide from predators.
c)
rest from migrating.
d)
all of these.
18.
A place to store water for later use is called a ______________.
a)
aquifer
b)
river
c)
reservoir
d)
wetland
19.
When you water crops that wouldn't normally get the perfect amount of rainfall they need it is called _______________.
a)
aquifer
b)
irrigation
c)
reservoir
d)
craziness
20.
Nick saw that the stream water was brown and murky. He concluded the stream had high ____________.
a)
turbidity
b)
salinity
c)
pH
d)
water quality
21.
A wetland forms between _____________ and ________________.
a)
bodies of water and bodies of water
b)
dry land and dry land
c)
dry land and bodies of water
d)
nowhere
22.
T of F: Wetlands filter water.
a)
T
b)
F
23.
A macroivertebrate {does / does not} have a backbone.
a)
does
b)
does not
24.
The quality of water will determine how ______________ an ecosystem is.
a)
healthy
b)
organized
c)
big
25.
MaryAnn wanted to test how acidic the pond was in her front yard. She would use test this...
a)
salinity
b)
turbidity
c)
pH
d)
dissolved oxygen
26.
Aquatic organisms need ________________ in the water to breathe.
a)
salt
b)
dissolved oxygen
c)
water
d)
food
27.
Water than doesn't soak into the ground will ___________________.
a)
percolate
b)
infiltrate
c)
runoff
d)
disappear
28.
When you know where the pollution is coming from it is called ____________ source pollution.
a)
nonpoint
b)
point
c)
bad
d)
good
29.
Pollution that comes from runoff is called ____________ source pollution
a)
nonpoint
b)
point
c)
good
d)
bad
30.
Amy's auto shop had a gasoline spill. Some of this gasoline made it into the Bull Run Creek. This is an example of...
a)
Nonpoint source pollution
b)
Point source pollution
31.
Trash ending up in the Potomac after the thunderstorm is an example of....
a)
Nonpoint source pollution
b)
Point source pollution
32.
Our VA watershed is the....
a)
James River
b)
Hudson River
c)
Potomac River
d)
Occaquan River
33.
The largest watershed in VA is the....
a)
Potomac River
b)
Roanoke River
c)
York River
d)
James River
Reset
