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WorksheetsSCA 30-38
Total questions: 42
Worksheet time: 26mins
Name
Class
Date
1.
True or false? Insoluble means that two substances can dissolve in one another.
a)
true
b)
false
2.
Water is a universal solvent
a)
true
b)
false
3.
When a substance can dissolve in another substance, it is said to be..
a)
soluble
b)
insoluble
c)
miscible
d)
immiscible
4.
A ______ is the substance being dissolved in a solution.
a)
solvent
b)
insolvent
c)
substrate
d)
solute
5.
The _____________ is the one doing the dissolving (water).
a)
solvent
b)
solute
c)
mixture
d)
reatants
6.
The image shown is an example of a ________.
a)
solution
b)
mixture
c)
suspension
7.
The image shown is an example of a ___________.
a)
solution
b)
mixture
c)
gas
d)
plasma
8.
Can a mixture be separated?
a)
No
b)
Yes
c)
Only sometimes
9.
A tossed salad would be considered a _______________.
a)
Solution
b)
Mixture
10.
Another example of a mixture is
a)
Water and oil
b)
Cereal and Milk
c)
Sand and water
d)
All of the above
11.
Smaller pieces of solute dissolve faster because
a)
they can be stirred faster
b)
more surface area is exposed
c)
smaller pieces are unsaturated
d)
they won't form crystals quickly
12.
Particles of matter are always moving. Usually, they move faster
a)
when undisturbed
b)
in a concentrated solution
c)
at high temps
d)
in a supersaturated solution
13.
When making jello, you accidentally use twice as much jello powder as the recipe calls for. You stir and stir, but you cannot get all of the jello to dissolve. This is because the solution is
a)
a liquid
b)
suspended
c)
saturated
d)
soluable
14.
A solution consists of two parts. One part is the substance that is dissolved. What is the name of this part of a solution?
a)
solvent
b)
solution
c)
solute
15.
When a substance can dissolve in another substance, it is said to be..
a)
soluble
b)
insoluble
c)
miscrible
16.
A combination of particles of one or more substance that are distributed uniformly throughout another substance is a/an
a)
Mixture
b)
Substance
c)
Solution
17.
What does this picture represent?
a)
element
b)
compound
c)
mixture
18.
A change that occurs without changing the chemical makeup is a
a)
Chemical Change
b)
Color change
c)
Physical Change
d)
Substance Change
19.
When you put a Kool-Aid packet in a pitcher of water, which one is the solvent?
a)
Kool-aid
b)
Water
20.
Stirring the solution...
a)
Slows the process down
b)
Doesn't change the process
c)
Speeds up the process
d)
None of the above
21.
What are two parts that make up a solution?
a)
solvent and solute
b)
concentration and dilation
c)
non polar and polar
d)
solid, liquid, and gaseous
22.
__________ are made up of solutes and solvents.
a)
Solutions
b)
Suspension
c)
Colloid
23.
A saturated solution is______
a)
No more solute can be dissolved
b)
More solute can be dissolved
c)
When the volume of solvent and solute is equal
d)
When the particles no longer move past each other
24.
Amount of solute in a given amount of solvent or solution
a)
Concentration
b)
Miscible
c)
Solute
d)
solubility
25.
Capable of being dissolved
a)
Soluble
b)
concentration
c)
colloid
d)
molarity
26.
Jessica made a pitcher of lemonade. What can she do to dilute if she thinks it doesn't taste right?
a)
Add water
b)
Add sugar
c)
Boil the lemonade
d)
Put it in the refrigerator
27.
True or false? Insoluble means that two substances can dissolve in one another.
a)
true
b)
false
28.
Which of the following is an example of a solution?
a)
Water and Sand
b)
Water and Pepper
c)
Water and Sugar
d)
Water and Oil
29.
How can you separate a solution of salt and water?
a)
Salt and Water do NOT make a solution
b)
Use a filter
c)
Pour the solution through a strainer
d)
Use a hot plate to evaporate the water
30.
What is the measure of an amount of solute dissolved in a solvent?
a)
dilute
b)
solution
c)
solute
d)
concentration
31.
Particles that are in the SOLID phase...
a)
slide past each other
b)
are at lower energy levels
c)
move freely
d)
are at higher energy levels
32.
Most natural water sources are pure and do not contain dissolved substances.
a)
True
b)
False
33.
Impurities in a substance like water are called:
a)
distilled
b)
toxins
c)
contaminants
d)
minerals
34.
Contaminants can enter the water supply by storm sewers and direct waste.
a)
True
b)
False
35.
Which is not true of Biological Contaminants
a)
caused by living or once living organisms
b)
contain bacteria, viruses or parasites
c)
caused by fertilizers, gasoline, oil and heavy metals
d)
can come from human and animal waste
36.
Which is NOT true of Chemical contaminants?
a)
can come from human or animal wastes
b)
examples are fertilizers, heavy metals, and acids
c)
can come from farms, vehicles, industry and mining
d)
could be caused by gas spilling from a pump and washing into storm sewers
37.
Particles at a higher energy level are called:
a)
Solids
b)
Liquids
c)
Gasses
38.
Particles in the GAS phase:
a)
vibrate but stay in place
b)
move to fill the container
c)
flow past each other
d)
do not move at all
39.
Vapor is another term that means which phase?
a)
Solid
b)
Liquid
c)
Gas
d)
Cohesive
40.
A phase change, from solid to a liquid, is a ____ change.
a)
permanent
b)
chemical
c)
physical
d)
biological
41.
In order for a substance to change phases, what must be added or removed?
a)
contaminants
b)
solutes
c)
solvents
d)
energy
42.
Why is water called the "UNIVERSAL SOLVENT?
a)
its ability to act as a solvent for a wide variety of solutes
b)
its ability to act as a solute for a wide variety of solvents
c)
because it is found throughout the universe
d)
because it is necessary for all living things
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