WorksheetsUnit 3 Quiz 3 Properties of Water
Total questions: 23
Worksheet time: 35mins
Name
Class
Date
1.
What two elements make up water?
a)
Helium and oxygen
b)
Hydrogen and oxygen
c)
helium and carbon
d)
oxygen and carbon
2.
What word describes when water is attracted to other substances?
a)
cohesion
b)
adhesion
c)
capillary action
d)
surface tension
3.
Attractions between the negative Oxygen atom of one water molecule and the positive Hydrogen atom of another water molecule are called
a)
Covalent bonds
b)
Ionic bonds
c)
Polar bonds
d)
Hydrogen bonds
4.
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.
5.
Which end of the water molecule has a slightly positive charge?
a)
the oxygen end
b)
the hydrogen end
c)
both ends are slightly positive
d)
neither end is positive
6.
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
7.
Which of the following is LEAST likely to dissolve in water?
a)
nonpolar fats and oils
b)
polar sugar molecules
c)
salt made of a positive sodium ion and a negative chloride ion
d)
all of the substances will dissolve easily in water
8.
Large bodies of water, such as lakes and oceans, do not quickly fluctuate in temperature. What is the reason for this phenomenon?
a)
Water is an acid.
b)
Water is a versatile solvent.
c)
Water has a high heat capacity.
d)
Water acts as a buffer.
9.
Small insects can walk across the surface of calm water. Their feet push the surface of the water down slightly, somewhat like a person walking across a trampoline, but they do not break the surface. What is the best explanation for why this happens?
a)
The insects are light enough so that they do not break the hydrogen bonds holding the water molecules together
b)
The insects actually use their wings to hover slightly above the water's surface and they only skim it with their feet
c)
The insects' feet are non-polar, so they are repelled by the polar water molecules and are pushed away from the water's surface
d)
The insects are small enough to see the individual water molecules, so they are able to step carefully from one molecule to the next
10.
The fact that ice floats on liquid water is due to the fact that water's solid is ___________ than it's liquid form
a)
less polar
b)
more polar
c)
less dense
d)
more dense
11.
How much of Earth's water is salt water?
a)
50%
b)
66%
c)
75%
d)
97%
12.
The tightness across the surface of water that enables paper clips to float is ____________.
a)
adhesion
b)
capillary action
c)
surface tension
d)
polarity
13.
Which statement explains why water molecules stick together?
a)
both sides are negative
b)
one side has a positive charge and the other side has a negative charge
c)
one side has a negative charge adn the other side has a neutral charge
d)
both sides are positive
14.
When a molecule has an opposite electrical charge on each end, it is known as what?
a)
cohesion
b)
polar molecule
c)
hydrogen bond
d)
solution
15.
When water molecules stick easily to other water molecules, this is called what?
a)
cohesion
b)
adhesion
c)
solution
d)
polar molecule
16.
Water beads up on the surface of a penny because of what property?
a)
Adhesion
b)
High Surface Tension
c)
Universal Solvent
d)
Changes in Density
17.
The ability of water molecules to stick to each other, creating surface tension is called:
a)
Cohesion
b)
Adhesion
c)
Insulation
d)
Ph
18.
The fact that water can stick to other substances is called:
a)
Ph
b)
Adhesion
c)
Cohesion
d)
Insulation
19.
Capillary action is when water moves up a thin tube such as the xylem in plants or chromatography paper pulls water upwards against gravity. This phenomena is due to.....
a)
adhesion
b)
cohesion
c)
a combination of adhesion and cohesion
d)
surface tension
20.
The water is sticking to the underside of the leaf because of......
a)
Adhesion
b)
Cohesion
c)
Capillary action
d)
Subversion
21.
Why does water move from the roots to the leaves of plants?
a)
Water is pushed by solutes
b)
Capillary action pulls the water molecules like a chain
c)
Water is pulled by gravity
d)
Water’s cohesion causes it to “pull” towards the leaves
22.
Match the following:
a)
attraction between molecules of the same substance
1.
Cohesion definition
b)
attraction between molecules of a different substance
2.
Adhesion definition
c)
3.
Cohesion picture
d)
4.
Adhesion picture
23.
The water drop got bigger on the penny because of ...
a)
universal solvent
b)
cohesion
c)
capillary action
d)
condensation
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