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WorksheetsWATER!
Total questions: 21
Worksheet time: 11mins
Name
Class
Date
1.
The molecular formula for water is
a)
W
b)
H2O
c)
2HO
d)
H2O
2.
Which is NOT a property of water that helps or bodies function properly?
a)
Water is a natural antibiotic substance
b)
Water dissolves many substances
c)
Water cools when it evaporates
d)
Water can hold heat (maintain temperature)
3.
If you made blue paint by dissolving dry blue paint powder into water, the liquid blue paint you made is a
a)
ion
b)
solute
c)
solution
d)
concentration
4.
If you dissolve blue paint powder into water, the paint powder is the...
a)
ion
b)
solute
c)
solution
d)
solvent
5.
Water dissolves ionic compounds, like NaCl, because water molecules...
a)
are non polar
b)
have a pH value of 14
c)
Have partially charged ends that interact with ions
d)
do not contain atoms
6.
Which statement best describes an effect of the low density of frozen water on a lake?
a)
When water freezes it contracts, decreasing the water level in the lake.
b)
Water in a lake freezes from the bottom up
c)
Water removes thermal energy from the land, causing the lake to freeze
d)
When water in a lake freezes, it floats and provides insulation for the organisms below
7.
Which combination when referring to salt water is correct in terms of solutes/solvents?
a)
solute: table salt solvent: saltwater
b)
solute: table salt solvent: water
c)
solute: water solvent: table salt
d)
solute: saltwater solvent: water
8.
How many hydrogen bonds can one water molecule make?
a)
6
b)
3
c)
4
d)
2
9.
Water is cohesive, the molecules are attracted to one another because of hydrogen bonds. This attraction helps create...
a)
surface action
b)
surface tension
c)
ice
d)
solvents
10.
A water molecule is polar. Its bent shape results in the following...
a)
slightly positive charge on hydrogen and slightly negative charge on oxygen
b)
slightly positive charge on hydrogen and slightly positive charge on oxygen
c)
slightly negative charge on hydrogen and slightly positive charge on oxygen
d)
no change because its neutral
11.
When water travels up the stem of a plant, this is a result of
a)
surface tension
b)
capillary action and adhesion
c)
capillary action and cohesion
d)
capillary action, cohesion and adhesion
12.
Water helps maintain homeostasis in an organism, which of the following hold true to that?
a)
Its high specific heat
b)
Its ability to dissolve substances
c)
Its ability to be a polar molecules and have a pH of 7
d)
all of these
13.
What property of water is being shown?
a)
polarity
b)
freezing point
c)
hydrogen bonds
d)
solution/universal solvent
14.
What property of water is being shown?
a)
cohesion
b)
adhesion
c)
polarity
d)
freezing point
15.
What property of water is being shown?
a)
solution
b)
adhesion
c)
freezing point
d)
specific heat
16.
What property of water is being shown?
a)
adhesion
b)
hydrogen bonds
c)
freezing point
d)
capillary action
17.
What property of water is being shown?
a)
cohesion
b)
hydrogen bonds
c)
adhesion
d)
polarity
18.
What property of water is being shown?
a)
polarity
b)
hydrogen bonds
c)
surface tension
d)
capillary action
19.
What property of water is being shown?
a)
cohesion
b)
adhesion
c)
freezing point
d)
capillary action
20.
What property of water is being shown?
a)
specific heat
b)
surface tension
c)
polarity
d)
solution
21.
What property of water is being shown?
a)
cohesion
b)
specific heat
c)
capillary action
d)
hydrogen bonds
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