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Unit 2 Review

Total questions: 137

Worksheet time: 2hrs 28mins

Name
Class
Date
1.

What is the definition of matter?

a)

Anything that has mass and takes up space

b)

A substance that is liquid, solid, or gas

c)

Anything that is pure

d)

Anything that you can see or hold

2.

What is the study of matter and how matter changes?

a)

Physical Science

b)

Chemistry

c)

Biology

d)

Matterology

3.

What term means "take up space"

a)

Volume

b)

Matter

c)

Mass

d)

Substance

4.

What term refers to a single kind of matter that is pure?

a)

Solution

b)

Mixture

c)

Substance

d)

Matter

5.

What term refers to "two or more substances combined physically, but are still able to be separated?"

a)

Mixture

b)

Solution

c)

Matter

d)

Combination

6.

Which of the following is NOT an example of matter?

a)

Sunlight

b)

Air

c)

Tree trunk

d)

Sponge

7.

Which of the following is NOT a mixture?

a)

Salsa

b)

Guacamole

c)

Egg Salad

d)

Bleach

8.

What is the difference between a mixture and a solution?

a)

A mixture retains its properties, a solution creates new ones

b)

A mixture and solution are the same

c)

A solution cannot be separated into it's individual components

d)

A mixture is chemically bonded, a solution is not.

9.

Which of the following is NOT a solution?

a)

Lemonade

b)

Salt water

c)

Soda

d)

Lemon Juice

10.

Which term refers to "two substances that have bonded together to form a new substance"

a)

Mixture

b)

Solution

c)

Substance

d)

Matter

11.

Substances that are made up of ONLY one type of atom (element) or compound.

a)

Heterogeneous mixture

b)

Pure substance

c)

Suspension

d)

Homogeneous mixture

12.

Which of the following is classified as a pure substance?

a)

Lemonade

b)

Fruit punch

c)

ketchup

d)

Hydrogen

13.
What is matter?
a)
Anything that has mass and occupies space
b)
Anything that has mass
c)
Anything that is made of air
d)
ALL of them 
14.
Which of the following is a pure substance? 
a)
Water
b)
Sugar
c)

Gold

d)
ALL of them
15.

Which of the following is NOT a mixture?

a)

milk

b)

lemonade

c)

vegetable salad

d)

carbon

16.

Which of these is an element?

a)

Salt (NaCl)

b)

Water (H20)

c)

Oxygen (O)

d)

Carbon Dioxide (CO2)

17.

Which of these is a compound?

a)

Aluminium (Al)

b)

Carbon Dioxide (CO2)

c)

Nitrogen (N)

d)

Sand

18.

True or False: Elements and compounds are pure substances.

a)

True

b)

False

19.

Identify which images are HETEROGENEOUS MIXTURES! (Check all that apply)

a)
b)
c)
d)
20.

Solutions are ___________ mixtures.

a)

Solid

b)

Homogenous

c)

Heterogeneous

d)

Gas

21.
Max is hungry and he prepares cereal with milk. This is an example of a: 
a)
Homogeneous mixture
b)
Heterogeneous mixture
22.
What are the two types of Mixtures
a)
Elements and Subatomic Particles
b)
Protons and Electrons
c)
Atoms and Compounds
d)
Homogenous and Heterogeneous
23.
Two substances physically combined and that appears the same throughout is classified as
a)
A homogeneous mixture
b)
A heterogeneous mixture
c)
An element
d)
  A compound
24.

What type of mixture does this diagram represent?

a)

Homogeneous

b)

Heterogeneous

25.

This separation method is called...

a)

Magnetism

b)

Filtration

c)

Distillation

d)

Evaporation

26.

Which method can you use to separate sand and iron filings?

a)

Distillation

b)

Magnetism

c)

Filtration

d)

Evaporation

27.
What type of mixture is this?
a)
homogenous mixture
b)
chemical
c)
heterogeneous mixture 
d)
solid mix
28.

A mixture that contains two or more substances uniformly combined

a)

heterogeneous mixture

b)

homogeneous mixture

c)

suspension

d)

colloid

29.

Matter is classified in...

a)

Elements & Compounds

b)

Homogeneous & Heterogeneous

c)

Colloids & Suspensions

d)

Pure substances & Mixtures

30.
a)
heterogeneous mixture
b)
homogeneous mixture
31.

In a density column, is the substance with the highest density on the bottom or the top?

a)

Bottom

b)

Top

32.

In a density column, is the substance with the lowest density on the bottom or on the top?

a)

Bottom

b)

Top

33.

Which of the following is the correct definition of density?

a)

The amount of stuff in an object

b)

The amount of space an object takes up

c)

A measure of the force of gravity on an object

d)

The amount of matter (mass) packed into a space (object)

34.

Which object has the highest density in this picture?

a)

A

b)

B

c)

C

35.

Which object has the lowest density in this picture?

a)

A

b)

B

c)

C

36.

Which of the following is an example of an object with a low density?

a)

Pillow

b)

Bowling Ball

c)

Brick

37.

Which of the following is an example of an object with a high density?

a)

Pillow

b)

Bowling Ball

c)

Beach Ball

38.

Which of the following is the correct units for density?

a)

grams (g)

b)

Newtons (N)

c)

cm3

d)

g/cm3

39.

What is the density of an object if it has a mass of 6g and a volume of 3cm3? (Hint: Density = mass/volume)

a)

6 g/cm3

b)

3 g/cm3

c)

2 g/cm3

d)

1/3 g/cm3

40.

Does 1cup or 6cups of water have a higher density?

a)

1 cup

b)

6 cups

c)

They have the same density

41.

You calculated the density of an unknown substance to be 7.8g/cm3. According to the chart, which of the substances doe you most likely have?

a)

Zinc

b)

Copper

c)

Tin

d)

Iron

42.

What is the density of an object with a mass of 3g and a volume of 1cm3? (Hint: Density = mass / volume)

a)

1/3 g/cm3

b)

3 g/cm

c)

3 g/cm3

43.

You calculated the density of an unknown substance to be 5.7g/cm3. According to the chart, which of the substances do you most likely have?

a)

Aluminum

b)

Iron

c)

Tin

d)

Zinc

44.

Which substance is the most dense in this picture?

a)

Vegetable Oil

b)

Dish Soap

c)

Honey

d)

Corn Syrup

45.

Compared to material A, material B has different...

a)

Density

b)

Mass

c)

Phase

d)

Shape

46.

Which of the following substances would float in water? (Hint: water has a density of 1g/cm3)

a)

gold

b)

rubber

c)

water

d)

cork

47.

Which of the following examples represents a physical change?

a)
b)
c)
d)
48.

Which of the following is evidence of a physical change?

a)

new substance

b)

shape change

c)

light produced

d)

gas released

49.

A teacher is demonstrating physical and chemical changes to her class. Which action should they use to demonstrate a chemical change?

a)

Cutting a piece of paper with scissors.

b)

Folding a piece of paper into an airplane.

c)

Ripping a piece of paper with their hands.

d)

Burning a piece of paper with a match.

50.

A physical change is

a)

a change where the characteristics do not change the substance

b)

a change where the characteristics do change the substance

c)

a change where the chemistry changes

51.

What is the definition of chemical change?

a)

any change that results in the formation of one (or more) new chemical substance(s)

b)

changing of only the appearance of the object

c)

matter cannot be created or destroyed, only change form

d)

changes affecting the form of a chemical substance, but not its chemical composition

52.
Which of these is an example of a new substance being formed?
a)
a nail rusting
b)
a wall being painted
c)
water changing to steam
d)
paper being folded
53.

Which example best illustrates a physical change?

a)

iron rusting

b)

charcoal burning

c)

an ice cube melting

d)

a marshmallow burning

54.

A glass bottle that is shattered is a

a)

Chemical Change

b)

Physical Change

55.

Baking soda and vinegar combining to make carbon dioxide is a

a)

Chemical Change

b)

Physical Change

56.

Which of the following are examples of chemical changes? Select all that apply!

a)

Iron Rusting

b)

Gas Burning

c)

Breaking a Glass

d)

Boiling Water

e)

Burning Wood

57.

Sugar dissolving in water is a

a)

Chemical Change

b)

Physical Change

58.

Identify the change shown in the picture.

a)

Irreversible physical change

b)

Irreversible chemical change

c)

reversible physical change

d)

reversible chemical change

59.

Which one describes a physical change?

a)

A change where the chemical makeup of an object changes.

b)

A change where the characteristics do not change the substance.

c)

A change where the substance turns into something new.

d)

The composition of the object changes.

60.

Which of the following is NOT an indicator of chemical changes?

a)

Unexpected color change

b)

Dissolving

c)

Light production

d)

Gas formation

61.

Select ALL the characteristics of a physical change.

a)

changes in appearance only

b)

a new substance is not created

c)

changes the pH level

d)

chemical bonds are not created or broken

e)

burning and fire

62.

In a chemical reaction, the number of atoms in the reactants and the products...

a)

Must be the same

b)

Must be different

63.

Which of these is NOT a sign of a chemical reaction?

a)

A phase change

b)

Formation of a precipitate

c)

A color change

d)

A temperature change

64.

To change from one state of matter to another state of matter is called?

a)

phase change

b)

potential change

c)

kinetic change

d)

thermal change

65.
Which of the following chemical formulas represents a compound? 
a)
C3
b)
O2
c)
CH3CHO
d)
H2
66.

What is a mixture?

a)

substances that are not chemically bonded and can be separated

b)

substances that are chemically bonded and can be separated

c)

substances that are not chemically bonded and can not be separated

d)

substances that are chemically bonded and can not be separated

67.
Blue Color: Chemical or Physical Property
a)
Chemical Property
b)
Physical Property
68.
Density: Chemical or Physical Property
a)
Chemical Property
b)
Physical Property
69.
Flammability (burns): Chemical or Physical Property
a)
Chemical Property
b)
Physical Property
70.
Reacts with Acid: Chemical or Physical Property
a)
Chemical Property
b)
Physical Property
71.
Brittleness: Chemical or Physical Property
a)
Chemical Property
b)
Physical Property
72.
Melting Point: Chemical or Physical Property
a)
Chemical Property
b)
Physical Property
73.
Reacts with Water: Chemical or Physical Property
a)
Chemical Property
b)
Physical Property
74.
Hardness: Chemical or Physical Property
a)
Chemical Property
b)
Physical Property
75.
Boiling Point: Chemical or Physical Property
a)
Chemical Property
b)
Physical Property
76.
Reacts with Air: Chemical or Physical Property
a)
Chemical Property
b)
Physical Property
77.
Which of the following tells you that a chemical change may have occurred?
a)
Change Shape
b)
Melting
c)
Vaporizing
d)
Change in color
78.
What happens in ALL chemical changes?
a)
Change in state of matter
b)
A new substance is formed
c)
Bubbles are produced
d)
An explosion
79.
Is wood burning a physical or chemical change?
a)
Physical 
b)
Chemical
80.

Is milk going sour and curdling a physical or chemical change?

a)

Physical

b)

Chemical

81.
Is Gatorade powder dissolving in water physical or chemical change?
a)
Physical 
b)
Chemical
82.
Is mold growing on cheese a physical or chemical change?
a)
Physical 
b)
Chemical
83.
Is making orange juice a physical or chemical change?
a)
Physical 
b)
Chemical
84.
Is sharpening a pencil a physical or chemical change?
a)
Physical 
b)
Chemical
85.
Is copper tarnishing a physical or chemical change?
a)
Physical 
b)
Chemical
86.
Is the formation of the grand canyon a physical or chemical change?
a)
Physical 
b)
Chemical
87.
In an exothermic reaction, energy is _________.
a)
Released
b)
Absorbed
c)
Stored
d)
Doubled
88.
The Law of Conservation of Mass tells us matter can't  ______________.
a)
change color
b)
change state of matter
c)
be created or destroyed
d)
change temperature
89.

Which of the following is not a clue that a chemical reaction has taken place?

a)

Changing size

b)

Changing color

c)

A gas being formed

d)

Formation of a precipitate

90.
Which of the following IS a clue that a chemical change has occurred? 
a)
State of matter change
b)
Size Change
c)
Change in temperature
d)
Shape change
91.
In a chemical reaction, how do the reactants compare to the products?
a)
They are the same
b)
They are different
92.
what is the definition of chemical change?
a)
any change that results in the formation of new chemical substances. 
b)
changing clothes
c)
matter cannot be created or destroyed, only change form
d)
changes affecting the form of a chemical substance, but not its chemical composition.
93.
which one is the definition of chemical property?
a)
a property or characteristic of a substance that is observed during a reaction where the chemical composition of a substance is changed
b)
any change that results in the formation of new chemical substances
c)
combustibility
94.
what is the definition of physical change?
a)
any change that results in the formation of new chemical substances. 
b)
rusting
c)
changes affecting the form of a chemical substance, but not its chemical composition.
d)
any property that is measurable, whose value describes a state of a physical system
95.
what is burning?
a)
physical change
b)
physical property
c)
chemical change
d)
chemical property
96.
which one is a chemical property?
a)
odor
b)
combustibility
c)
solubility
d)
all of the above
97.
which one is a physical change?
a)
evaporation
b)
energy
c)
sublimation
d)
evaporation and sublimation
98.
what is condensing?
a)
physical property
b)
chemical property
c)
chemical change
d)
physical change
99.

what is digestion?

a)

physical property

b)

chemical change

c)

physical change

100.
One cup of water is left outside for two days when it was checked there was only half a cup left. What happened?
a)
evaporation; chemical change
b)
condensation; physical change 
c)
evaporation; physical change
d)
condensation; chemical change
101.
what happens when water freezes?
a)
ice is formed; chemical property
b)
cold water is formed; physical change
c)
ice is formed; physical change
d)
cold water is formed; chemical change
102.
what stays the same when there is a physical change?
a)
density
b)
volume
c)
neither
103.
melting is a chemical change
a)
true 
b)
false
104.
What is reactability?
a)
the ability of a substance to undergo a chemical reaction, either by itself or with other materials
b)
the ability of a substance to undergo a physical change either by itself or with other materials
105.
Which is NOT a physical property?
a)
odor
b)
reacts with acid
c)
ability to conduct electric current
d)
hardness
106.
Which is an example of a physical property?
a)
ability to react with acid
b)
 state of matter
c)
flammability
d)
ability to react with oxygen
107.
Physical properties are
a)
properties that can be observed without changing the identity of the substance
b)
properties that describe how a substance changes into a completely different substance
108.
Which type of property is the ability to conduct electricity?
a)
physical property
b)
chemical property
109.
What kind of properties can only be observed when a substance changes into a different substance?
a)
physical properties
b)
chemical properties
c)
liquid properties
d)
real properties
110.
Which box has a higher density?  
a)
Box A
b)
Box B
c)
cannot be determined
d)
they are the same
111.
Calculate the density of the cube.
a)
2 g/cm3
b)
4 g/cm3
c)
6 g/cm3
d)
8 g/cm3
112.
A fish has a mass of 30g. What is the density of the fish?
a)
5 mL
b)
5 g/mL 
c)
6 g/mL
d)
6 g
113.
A gold brick has a density of 19.32 g/cm3. What is the density of half of the gold brick?
a)
9.66 g/cm3
b)
19.32 g/cm3
c)
38.64 g/cm3
d)
cannot be determined
114.
Put the liquids in order from most dense to least dense?
a)
4, 3, 2, 1
b)
1, 2, 3, 4
c)
3, 4, 2, 1, 
d)
4, 3, 1, 2
115.
The table below lists the densities of five metals. All of the following metals will float in mercury except...
a)
copper
b)
gold
c)
silver 
d)
zinc
116.

According to the picture from left to right, which of the answers is correct?

a)

neurally buoyant, positively buoyant, negatively buoyant

b)

negatively buoyant, neutrally buoyant, positively buoyant

c)

positively buoyant, neutrally buoyant, negatively buoyant

d)

neutrally buoyant, negatively buoyant, positively buoyant

117.

As a flame heats air in a hot air balloon it starts to rise. Which of the following statements incorrectly explains the chemistry behind why this happens.

a)

The air molecules become less dense & more bouyant than the cooler air in the surrounding atmosphere.

b)

The volume of the gas increases because the molecules in the gas are spaced further apart.

c)

The mass of the of the gas increases causing density to increase & buoyancy to decrease.

118.
Two liquids are poured out of containers at the same height & time. Liquid 1 empties from the container before liquid 2. Which liquid has a lower viscosity? 
a)
liquid 1
b)
liquid 2
c)
both liquids have the same viscosity
d)
cannot be determined
119.

Which graduated cylinder has the highest viscosity

a)

The graduated cylinder with the ball at 20mL.

b)

The graduated cylinder with the ball at 30mL.

c)

The graduated cylinder with the ball at 40mL.

d)

The graduated cylinder with the ball at 50mL.

120.

How is viscosity & density affected when a fluid is heated?

a)

viscosity increases & density increases

b)

viscosity decreases & density decreases

c)

viscosity decreases & density increases

d)

temperature has no affect on viscosity or density

121.

At which of these temperatures is the viscosity of the fluid highest? (see graph)

a)

40 °C

b)

60 °C

c)

80 °C

d)

100 °C

122.

Viscosity can be described as...

a)

a physical property of liquids

b)

a physical property of solids

c)

a chemical property of liquids

123.

Low viscosity can be described as...

a)

liquids that flow quickly

b)

liquids that flow slowly

124.

High viscosity can be described as...

a)

a liquid that flows quickly

b)

a liquid that flows slowly

125.

Peanut butter is an example of a...

a)

High viscosity liquid

b)

Low viscosity liquid

c)

Isnt a liquid at all! Don't be silly.

126.

Water is an example of a...

a)

Low viscosity liquid

b)

High viscosity liquid

127.

Which viscosity can be described as "thick"?

a)

Low viscosity

b)

High viscosity

128.

Which viscosity can be described as "thin"?

a)

Low viscosity

b)

High viscosity

129.

Write one interesting thing you have learnt about viscosity

4 lines
130.

What is a fluid?

a)

A firm and stable shape.

b)

A substance that has no fixed shape and yields easily to external pressure.

131.

Which of these are classified as fluids?

a)

Solid

b)

Liquid

c)

Gas

132.

What is fluid flow?

a)

Describes how fluids behave when frozen.

b)

Describes how fluids behave when heated.

c)

Describes how fluids behave in their surrounding environment.

133.

Which of these are fluids?

a)

Sand

b)

Water

c)

Oxygen

d)

Rocks

134.

What is Viscosity?

a)

A fluids colour.

b)

A fluids temperature.

c)

A fluids resistance to flow.

135.

Which of these factors affects Viscosity?

a)

Temperature

b)

Colour

c)

Taste

136.

What is flow rate?

a)

The speed of a fish swimming across a lake.

b)

The speed of a rocket going to the moon.

c)

The speed which a fluid flows from one point to another.

137.

How many liters of gasoline is sold in Canada per year?

a)

43 million litres.

b)

43 billion litres.

c)

43 thousand litres.

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