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Total questions: 25

Worksheet time: 19mins

Name
Class
Date
1.

Freshwater makes up how much of the Earth's water supply?

a)

87%

b)

75%

c)

6%

d)

3%

2.

Saltwater makes up how much of the Earth's water supply?

a)

97%

b)

67%

c)

23%

d)

4%

3.

What sphere is water found in

a)

Hydrosphere

b)

Hyposphere

c)

Hidosphere

d)

Hydyrosphere

4.
Where is most of the freshwater found on Earth?
a)
lakes
b)
glaciers
c)
oceans
d)
rivers
5.
What is A?
a)
Evaporation
b)
Condensation
c)
Precipitation
d)
Runoff
6.
What is B?
a)
Evaporation
b)
Condensation
c)
Precipitation
d)
Runoff
7.
What is C?
a)
Evaporation
b)
Condensation
c)
Precipitation
d)
Runoff
8.
What is the water that fills the cracks and spaces in underground soil and rock layers called?
a)
Groundwater
b)
Water Table
c)
Precipitation
d)
Snow
9.
Which best explains why runoff is important?
a)
It returns water to other locations on Earth
b)
It increases the chance of flooding
c)
It makes evaporation occur faster
d)
It increases condensation
10.
What is it called when plants give off water vapor as a waste product?
a)
condensation
b)
evaporation
c)
sublimation
d)
transpiration
11.

Water from precipitation soaks down through permeable rock and soil layers. These layers contain air as well as water, so they are to saturated, or filled, with water. This top is called......

a)

Saturated zone

b)

Water table

c)

Unsaturation zone

d)

Unsaturated zone

12.

What word would be used to describe a material that has large, unconnected pores that water can flow through?

a)

saturated

b)

unsaturated

c)

permeable

d)

impermeable

13.

Where is the water table located?

a)

at the top of the saturated zone

b)

between layers of impermeable rock

c)

in the unsaturated zone

d)

below layers of clay

14.
A result of pumping water from aquifers is that
a)
farms produce fewer crops. 
b)
the recharge zone shrinks. 
c)
the aquifer cannot be recharged fast enough. 
d)
groundwater stops being collected. 
15.
What word describes when water is attracted to other substances?
a)
cohesion
b)
adhesion
c)
capillary action
d)
surface tension
16.
tendency of molecules of the same kind to stick to one another
a)
cohesion
b)
adhesion
c)
solution
d)
polar molecule
17.
Why does ice float?
a)
As water freezes, it expands and its density decreases.
b)
As water freezes, it takes up more hydrogen from the atmosphere, causing it to have a greater buoyancy.
c)
As water freezes, air becomes trapped between the hydrogen bonds of water molecules.
d)
As water freezes, it takes up more oxygen from the atmosphere, causing it to have a greater buoyancy.
18.
A molecule with electrically charged areas is called a _______________.
a)
magnet
b)
polar molecule
c)
solution
d)
electrical molecule
19.
The reason the water balloon did NOT pop while held over a flame is water's _________.
a)
Less dense than air.
b)
Hydrogen bonds between water molecules.
c)
polarity.
d)
high specific heat capacity.
20.
Water is a universal solvent because it...
a)
It can be found anywhere
b)
It freezes when it gets cold
c)
floats when frozen
d)
Dissolves most substances
21.
Water beads up on the surface of a penny because of this property.
a)
Adhesion
b)
High Surface Tension
c)
Universal Solvent
d)
Changes in Density
22.

beginning of a river.

a)

mouth

b)

headwaters

c)

tributary

d)

watershed/river basin

23.
end of river
a)
mouth
b)
headwaters
c)
tributary
d)
confluence
24.

land drained by a river system

a)

watershed/river basin

b)

tributary

c)

confluence

d)

river

25.
a smaller river flowing into a larger river
a)
headwaters
b)
tributary

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