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WorksheetsUnit A grade 8 1 &2
Total questions: 94
Worksheet time: 3hrs 16mins
Name
Class
Date
1.
What safety symbol is this?
a)
Flammable
b)
Oxidizing Agent
c)
No Open Flame
d)
Explosion
2.
What safety Symbol is this?
a)
Flamable
b)
Oxidizing Agent
c)
No Open Flame
d)
Explosion
3.
The following symbol is for ...
a)
Biohazardous materials
b)
Compressed gas
c)
Oxidizing material
d)
Dangerously reactive material
4.
The following symbol is for ...
a)
oxidizing material
b)
flammable material
c)
materials causing other toxic effects
d)
corrosive material
5.
The following WHMIS symbol represents ...
a)
corrosive material
b)
biohazardous infectious materal
c)
flammable & combustable material
d)
dangerously reactive material
6.
The following WHMIS symbol is put onto ______________________ material.
a)
flammable
b)
dangerously reactive
c)
oxidizing
d)
poisonous
7.
What does WHMIS stand for?
a)
Workplace, Hazardous, Matter, Information, Sheet
b)
Working, Has, Many, Important, Systems
c)
Workplace, Hazardous, Materials, Information, Sheet
d)
Workplace, Hazardous, Material, Information, Systems
8.
What does this symbol mean?
a)
danger
b)
warning
c)
caution
9.
What does this symbol mean?
a)
danger
b)
warning
c)
caution
10.
What does this symbol mean?
a)
danger
b)
warning
c)
caution
11.
Which symbol means it will speed up the development of fire, causing things to burn more easily?
a)
Top right
b)
Top left
c)
Bottom right
d)
Bottom left
12.
Which symbol means 'causes less serious health effects or damages the ozone'?
a)
Top right
b)
Top left
c)
Bottom right
d)
Bottom left
13.
Which of these symbols means: Explosion or reactivity hazard?
a)
Top right
b)
Top left
c)
Bottom right
d)
Bottom left
14.
Liquids take the same ________ and _________ as their container.
a)
shape and size
b)
shape and volume
c)
size and color
d)
size and temperature
15.
What are the states of matter?
a)
solid, liquid, and juice
b)
solid and liquid
c)
solid and gas
d)
solid, liquid, and gas
16.
Which form of matter has a definite shape like this picture?
a)
liquid
b)
solid
c)
gas
d)
clay
17.
Which form of matter fills the space like it has in the balloon?
a)
liquid
b)
string
c)
solid
d)
gas
18.
What is happening when my water bottle in the freezer goes from a liquid state to a solid state?
a)
melting
b)
evaporating
c)
freezing
d)
cutting
19.
Which form of matter take the shape of a container like this juice?
a)
liquid
b)
solid
c)
glass
d)
gas
20.
What happens when my glass of water is sitting in the sun and disappears into a gas?
a)
evaporation
b)
burning
c)
melting
d)
freezing
21.
What is happening when my ice cream changes from a solid to a liquid?
a)
freezing
b)
melting
c)
burning
d)
evaporation
22.
Is a pencil eraser a fluid?
a)
True
b)
False
23.
Is ketchup a fluid?
a)
True
b)
False
24.
What does HHPS stand for?
a)
Hazardous, Housing, Product, Symbol
b)
Hazardous, Household, Product, Symbol
c)
Hairy, Hands, Probably, Smell
d)
Hazardous, Household, Purchase, Symbol
25.
A mixture with visibly different substances mixed together insoluble
a)
Homogeneous
b)
Insoluble
c)
Heterogeneous
d)
Pollutant
26.
Particles of pure substances mix completely, appearing as one substance
a)
Heterogeneous
b)
Insoluble
c)
Filtration
d)
Homogeneous
27.
A substance that does not dissolve in a solvent
a)
Manufactured products
b)
Insoluble
c)
Soluble
d)
Diluted
28.
Matter that contains only one kind of particle
a)
Saturated
b)
Unsaturated
c)
Raw material
d)
Pure Substances
29.
A solution that cannot dissolve any more solvent at a given temperature
a)
Soluble
b)
Saturated
c)
Unsaturated
d)
Solution
30.
How easily a substance dissolves in a solvent
a)
Solute
b)
Soluble
c)
Solution
d)
Solvent
31.
A solution that can dissolve more solute
a)
WHMIS symbols
b)
Saturated
c)
Solution
d)
Unsaturated
32.
What is a solvent?
a)
The substance that does the dissolving in a solution.
b)
The substance that is being dissolved in a solution.
c)
The mixing of different substances.
d)
The process in which neutral molecules lose or gain electrons
33.
The concentration of a mixture can be increased in which of the following ways?
a)
Heating the mixture
b)
Adding more water “solvent”
c)
Adding more powder “solute”
d)
Stirring the mixture
34.
salt water is a
a)
compound
b)
element
c)
heterogeneous mixture
d)
solution
35.
An unsaturated solution is one that....
a)
contains the maximum amount of dissolved solute.
b)
contains less solute than a saturated solution.
c)
contains more solute than a saturated solution.
d)
is the amount of a substance required to form a saturated solution.
36.
Milk
a)
Heterogeneous mixture
b)
Homogeneous mixture
37.
mashed, unpeeled potatoes
a)
Heterogeneous mixture
b)
Homogeneous mixture
38.
A(n) _______________ is a mixture of tiny particles of one material scattered throughout another material.
a)
colloid
b)
suspension
c)
emulsion
d)
solution
39.
The amount of solute actually dissolved in a given amount of solvent.
a)
dilution
b)
concentration
c)
saturated solution
d)
supersaturated mixture
40.
Which has the highest concentration
A: 30 grams of salt in 70 ml of water
B: 45 g of salt in 92 ml of water
C: 80 g of salt in 205 ml of water
D: 12 g of salt in 30 ml of water
a)
A
b)
B
c)
C
d)
D
41.
Which has the highest concentration
A: 55 grams of salt in 130 ml of water
B: 20 g of salt in 65 ml of water
C: 79 g of salt in 150 ml of water
D: 140 g of salt in 215 ml of water
a)
A
b)
B
c)
C
d)
D
42.
Water is a universal solvent
a)
true
b)
false
43.
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
44.
Does the dissolving?
a)
Solute
b)
solvent
c)
solution
d)
water
45.
An aqueous solution means
a)
the solute is water
b)
both the solute and solvent are water
c)
the solvent is water
46.
How do gases behave in a container?
a)
Cluster together
b)
form a solid
c)
They take the shape of their container
d)
leak out
47.
Which description best matches this particle model?
a)
Closely packed and can't move a lot.
b)
Particles are close together but can move a little.
c)
Particles have lots of energy and can move around.
48.
Which description best matches this particle model?
a)
Closely packed and can't move a lot.
b)
Particles are close together but can move a little.
c)
Particles have lots of energy and can move around.
49.
Which of the following occurs when a liquid becomes a gas?
a)
the particles slow down
b)
the particles beak away from one another
c)
the particles move closer together
50.
T/F particles are always moving
a)
true
b)
false
51.
A fluid
a)
Can only be a liquid
b)
Can only be a gas
c)
Can be a liquid or a gas
d)
Can be a solid
52.
As particles are exposed to colder temperatures they _____
a)
speed up
b)
slow down
c)
stay the same
d)
become ions
53.
Particles of pure substances mix completely, appearing as one substance heterogeneous
a)
Heterogeneous
b)
Insoluble
c)
Filtration
d)
Homogeneous
54.
A solution that can dissolve much more solute; having a low concentration
a)
Homo
b)
Filtration
c)
Dissolve
d)
Dilute
55.
A solution with a high amount of dissolved solute
a)
Dilute
b)
Dissolve
c)
Concentrated
d)
Unconcentrated
56.
A mixture with visibly different substances mixed together that are insoluble
a)
Homogeneous
b)
Insoluble
c)
Heterogeneous
d)
Pollutant
57.
Contains 2 or more pure substances that do not blend when put together and therefore, can easily be separated
a)
Particle theory
b)
Pure Substance
c)
Mechanical Mixture
d)
Mechanical solvent
58.
A solution that cannot dissolve any more solvent at a given temperature is
a)
Soluble
b)
Saturated
c)
Unsaturated
d)
Solution
59.
A solution that can dissolve more solvent is
a)
WHMIS symbols
b)
Saturated
c)
Solution
d)
Unsaturated
60.
This is charcoal, made of only Carbon (C). It is a(n)...
a)
compound
b)
mixture
c)
pure substance
d)
solution
61.
All solutions are mixtures.
a)
True
b)
False
c)
Huh?
d)
Que onda?
62.
All mixtures are solutions
a)
True
b)
False
c)
What?
d)
Tu eres loco, Hagerman.
63.
All solutions are...
a)
homogeneous
b)
heterogeneous
64.
What separation technique is used to separate the parts of a solution?
a)
chromatography
b)
filtration
c)
evaporation
65.
All of the following are homogeneous mixtures except
a)
tomato soup
b)
sugar-water solution
c)
gasoline
d)
salt-water solution
66.
Which of the following is a colloid?
a)
water
b)
milk
c)
soil
d)
concrete
67.
Italian dressing is a
a)
solution
b)
suspension
c)
colloid
68.
What type of mixture separates upon standing?
a)
Solution
b)
Alloy
c)
Colloid
d)
Suspension
69.
soda pop is a
a)
solution
b)
mechanical mixture
c)
suspension
d)
colloids
70.
hot chocolate is a
a)
solution
b)
mechanical mixture
c)
suspension
d)
colloids
71.
salad is a
a)
solution
b)
mechanical mixture
c)
suspension
d)
colloids
72.
butter is a
a)
solution
b)
mechanical mixture
c)
suspension
d)
colloids
73.
whipped cream is a
a)
solution
b)
mechanical mixture
c)
suspension
d)
colloids
74.
muddy water is a
a)
solution
b)
mechanical mixture
c)
suspension
d)
colloids
75.
lucky charms is a
a)
solution
b)
mechanical mixture
c)
suspension
d)
colloids
76.
vinegar is an example of
a)
homogeneous mixture
b)
heterogeneous mixture
77.
coffee is an example of
a)
homogeneous mixture
b)
heterogeneous mixture
78.
mouth wash is an example of
a)
homogeneous mixture
b)
heterogeneous mixture
79.
vinegar and oil is an example of
a)
homogeneous mixture
b)
heterogeneous mixture
80.
gold is an example of
a)
pure substance
b)
mixture
81.
Gatorade is an example of
a)
pure substance
b)
mixture
82.
steel is an example of
a)
pure substance
b)
mixture
83.
silver is an example of
a)
pure substance
b)
mixture
84.
Which is an example of a solute?
a)
Egg whites
b)
Sugar
c)
Water
d)
Acetone
85.
The thing that does the dissolving
a)
Solute
b)
Solvent
c)
Colloid
d)
Solution
86.
Solute
a)
The thing that does the dissolving
b)
The thing that gets dissolved
87.
__________ are made up of solutes and solvents.
a)
Solutions
b)
Suspension
c)
Colloid
88.
If we are making Kool-aid with sugar, Kool-aid powder, and water, which part is the solvent?
a)
water
b)
powder
c)
sugar
d)
powder and sugar
89.
Solubility is
a)
the ability of a substance to dissolve
b)
the ability of a substance to melt
c)
the ability of a substance to freeze
d)
the ability of a substance to evaporate
90.
A solution that is considered dilute would be....
a)
Dark in color
b)
Have a strong scent
c)
Have a large amount of solute
d)
Have a small amount of solute
91.
Lemonade - Water, lemon juice, and sugar
Identify the solute
Identify the solute
a)
water
b)
lemon juice
c)
sugar and lemon juice
92.
When a Koolaid mix in water is dark in color and very sweet it is a __________ solution.
a)
concentrated
b)
Diluted
93.
When Koolaid mix is light colored and tastes watery it is a _______ solution.
a)
saturated
b)
diluted
94.
If a spoonful of salt is mixed in a glass of water, what is the water called?
a)
A. solute
b)
B. solution
c)
C. solvent
d)
D. element
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