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Water

Total questions: 25

Worksheet time: 57mins

Name
Class
Date
1.
The chemical compound of water is
a)
HO
b)
H2O
c)
H3O
d)
HO2
2.
Water is a universal solvent
a)
True
b)
False
3.
A Compound that is being dissolved is called a
a)
Solution
b)
Solute
c)
Solvent
d)
Suspension
4.
A solvent is...
a)
substance into which the solute dissolves
b)
a compound being dissolved
c)
a substance that does not dissolve
d)
None of the above
5.
A water strider can skate along the top of a pond because:
a)
covalent bonds result in water cohesion
b)
hydrogen bonds result in water cohesion (surface tension)
c)
water striders have adapted to take advantage of water cohesion
d)
low surface tension of water
6.
Why can water have no net charge but have slight charges in different parts of the molecule?
a)
The oxygen end is slightly negative and the hydrogen end is slightly positive
b)
The hydrogen end is slightly negative and the oxygen end is slightly positive
c)
The hydrogen and oxygen ends change in polarity
d)
Because it is hydrophobic
7.
Attractions between water molecules are called
a)
Covalent bonds
b)
Ionic bonds
c)
Polar bonds
d)
Hydrogen bonds
8.
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
9.
Acids have more what? 
a)
OH ions 
b)
OH- ions
c)
H+ ions 
d)
All of the above 
10.
Water is polar because...
a)
The unequal sharing of electrons gives the water molecule a slight negative charge near its oxygen atom and a slight positive charge near its hydrogen atoms.
b)
The molecule has two poles, at which the it is colder than other regions of the molecule.
c)
The unequal sharing of electrons gives the water molecule a slight negative charge near its hydrogen atoms and a slight positive charge near its oxygen atom.
d)
The water molecule is neutral.
11.
What word describes when water is attracted to other substances?
a)
cohesion
b)
adhesion
c)
capillary action
d)
surface tension
12.
Approximately what percentage of the water on Earth is freshwater?
a)
0.1%
b)
2.6%
c)
50%
d)
97%
13.
Acid (H+) + base (OH-) → water + salt
a)
The reaction above is solution
b)
The reaction above is a suspension
c)
The reaction above is neutralization
d)
The reaction above is condensation
14.
This substance releases OH- into solution
a)
Acid
b)
Base
c)
Neutral
15.
A(n) _______ is a substance with a pH greater than 7.
a)
Base
b)
Acid
c)
Buffer
d)
Water
16.
A(n) ______ is a substance with a pH less than 7
a)
Acid
b)
Alkaline
c)
Base
d)
Buffer
17.

The processes in which water vapor (a gas) in the air turns into liquid water

a)

Condensation

b)

Evaporation

c)

Precipitation

d)

Transpiration

18.

The pattern of water moving between Earth and the atmosphere.

a)

Carbon Cycle

b)

The Groundwater Cycle

c)

The Water Cycle

d)

The Carbon Cycle

19.

Why was there lead levels so high in Flint, MI?

a)

The lake had high levels of lead.

b)

The water was not purified correctly

c)

There was no lead in the water

d)

The lead from the pipes was getting in the water

20.

Which part of the image of rocks will hold more water?

a)

Right

b)

Left

c)

Center

21.

This is the flow of underground water when it reaches the surface.

a)

Groundwater

b)

Spring

c)

Geyser

d)

Well

22.

This is when water evaporates through pores of a plant

a)

Transpiration

b)

Evaporation

c)

Condensation

d)

Hydrologic cycle

23.

When rocks and soil become saturated, the ground water rises. This is called:

a)

Spring

b)

Geyser

c)

Cave

d)

Water Table

24.

What are health concerns associated with drinking water with lead? (there is more than 1 correct answer)

a)

Rots your teeth

b)

Behavior problems

c)

Create bigger muscles

d)

Slows growth

25.

Which are examples of precipitation? (more than 1 correct answer)

a)

rain

b)

snow

c)

wells

d)

geysers

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