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WorksheetsWater
Total questions: 52
Worksheet time: 39mins
Name
Class
Date
1.
Letter B is?
a)
evaporation
b)
transpiration
c)
condensation
d)
accumulation
2.
The water cycle has...
a)
a beginning and an end.
b)
no beginning and no end.
c)
only a beginning.
d)
only an end.
3.
What is condensation?
a)
the change of water from a gas to a liquid.
b)
the change of water from a liquid to a gas.
c)
the change of water from a solid to a gas.
d)
the change of water from gas to a solid.
4.
What are the three states of water found on Earth?
a)
solid, liquid & gas
b)
oceans, lakes & streams
c)
evaporation, transpiration
d)
rain, sleet & hail
5.
When water _________, dew and clouds can form.
a)
Melts
b)
Evaporates
c)
Condenses
d)
Precipitates
6.
Evaporation occurs when water changes into ________.
a)
transpiration
b)
snow
c)
solid
d)
vapor
7.
What percent of Earth is covered by water and ice?
a)
85%
b)
90%
c)
75%
d)
97%
8.
What percent of Earth's water is the oceans?
a)
70%
b)
85%
c)
90%
d)
97%
9.
Which of these is a method for conserving fresh water?
a)
Taking long showers and baths
b)
Taking short showers and baths
c)
Leaving the water running while brushing your teeth
d)
Washing your car with a running hose
10.
Letter B is?
a)
evaporation
b)
transpiration
c)
condensation
d)
accumulation
11.
Letter C is?
a)
precipitation
b)
transpiration
c)
condensation
d)
accumulation
12.
Letter D is?
a)
precipitation
b)
transpiration
c)
condensation
d)
run off
13.
Letter F is?
a)
precipitation
b)
accumulation
c)
condensation
d)
run off
14.
What is the chemical formula for water?
a)
2HO
b)
H2O
c)
HO2
d)
H2O2
15.
How many hydrogen atoms are in one molecule of water?
a)
1
b)
2
c)
3
d)
4
16.
Potable water means...
a)
Water which comes straight from a river or reservoir
b)
Water containing bacteria
c)
Water which is safe to drink
d)
Water which contains a high concentration of salt
17.
Water pollution and waste plays a big factor in water shortage.
a)
True
b)
False
18.
The pH scale is a range from:
a)
1-7
b)
0-14
c)
1-14
d)
1-20
19.
A(n) ______ is a substance with a pH less than 7
a)
Acid
b)
Alkaline
c)
Base
d)
Buffer
20.
A(n) _______ is a substance with a pH greater than 7.
a)
Base
b)
Acid
c)
Buffer
d)
Water
21.
This substance releases OH- into solution
a)
Acid
b)
Base
c)
Neutral
22.
Water is a universal solvent
a)
True
b)
False
23.
A Compound that is being dissolved is called a
a)
Solution
b)
Solute
c)
Solvent
d)
Suspension
24.
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
25.
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
26.
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
27.
Attractions between water molecules are called
a)
Covalent bonds
b)
Ionic bonds
c)
Polar bonds
d)
Hydrogen bonds
28.
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
29.
Acids have more what?
a)
OH ions
b)
OH- ions
c)
H+ ions
d)
All of the above
30.
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.
31.
True or false, water is a polar molecule?
a)
True
b)
False
32.
What word describes when water is attracted to other substances?
a)
cohesion
b)
adhesion
c)
capillary action
d)
surface tension
33.
The attraction that causes water and other liquids to form drops on thin films is called ________________. This is also water’s ability to be attraction to other water molecules.
a)
adhesion
b)
capillary action
c)
cohesion
d)
surface tension
34.
Approximately what percentage of the water on Earth is freshwater?
a)
0.1%
b)
2.6%
c)
50%
d)
97%
35.
True of False: There is less water on our planet today then there was 10,000 years ago.
a)
True
b)
False
36.
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
37.
The chemical compound of water is
a)
HO
b)
H2O
c)
H3O
d)
HO2
38.
What amount of the earth's surface is covered with water?
a)
25%
b)
72%
c)
97%
d)
99%
39.
What amount of the water on the earth is salt water?
a)
25%
b)
72%
c)
97%
d)
99%
40.
Roughly 2% of the earth's freshwater is?
a)
frozen
b)
water vapor
c)
groundwater
d)
polluted water
41.
Categorically, the largest consumer of water in the U.S. is for what purpose?
a)
agriculture
b)
industry
c)
municipal
d)
recreation
42.
What is the main reason why water is not desalinated?
a)
don't know how
b)
too expensive
c)
difficult to transport
d)
inaccessible
43.
For what purpose is most of the water used in American households?
a)
washing machine
b)
dishwasher
c)
lawns
d)
showering
44.
Which country has staked its future on dams more than others?
a)
India
b)
China
c)
Isreal
d)
Palestine
45.
Why is water the most important substance on the planet?
a)
It Dilutes
b)
Drives Climate
c)
Sustains Life
d)
It's Pretty
46.
How is most water supplied in the United States?
a)
Groundwater
b)
Divertion
c)
Desalination
d)
Dams
47.
What amount of the population in Mexico City have access to clean water?
a)
1/3
b)
1/4
c)
1/2
d)
3/4
48.
What amount of water is lost in Mexico City due to leaks?
a)
1/3
b)
1/4
c)
1/2
d)
3/4
49.
Israel depends on what type of water to meet their growing needs?
a)
Desalinated
b)
Recycled
c)
Diverted
d)
Rain Water
50.
How do most Palestinians get their water?
a)
Desalinate
b)
Recycle
c)
Divert
d)
Rain Water
51.
What is the main reason why water is scarce?
a)
climate
b)
population
c)
over use
d)
priced too low
52.
Agriculture uses what percentage of the water worldwide?
a)
15%
b)
40%
c)
65%
d)
90%
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