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Physical and Chemical Changes

Total questions: 183

Worksheet time: 2hrs 5mins

Name
Class
Date
1.
True or False: a physical change may produce a new substance.
a)
True
b)
False
2.

Choose the best description below for the image

a)

physical change

b)

chemical change

3.

Choose the best description below for the image

a)

physical change

b)

chemical change

4.

What kind of change occurs if matter changes in amount, size, or shape?

a)

substance change

b)

chemical change

c)

physical change

d)

elemental change

5.
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
6.

Which use of iron is due to its chemical properties? 

a)

producing colored sparks in fireworks

b)

changing from liquid to gas at 2,862°C

c)

conducting electricity and heat

d)

changing from solid to liquid if heated to 1,538°C

7.

1) True or False: Intensive Properties change as the amount of substance changes.

a)

True

b)

False

8.

Flammability - how easily something combusts

a)

chemical property

b)

intensive physical property

c)

extensive physical property

9.

Freezing point - the temperature at which a substance changes from a liquid to a solid

a)

chemical property

b)

intensive physical property

c)

extensive physical property

10.
This bullseye demonstrates...
a)
High Accuracy & High Precision
b)
High Accuracy & Low Precision
c)
Low Accuracy & High Precision
d)
Low Accuracy & Low Precision
11.

Glass breaking is an example of :

a)

chemical change

b)

Physical Change

c)

No Change

12.

What kind of change occurs if matter changes in amount, size, or shape?

a)

substance change

b)

chemical change

c)

physical change

d)

elemental change

13.

Cooking an egg

a)

Chemical

b)

Physical

14.

Melting Chocolate

a)

Chemical

b)

Physical

15.

Evaporating Water

a)

Chemical

b)

Physical

16.

No new substance created

a)

Chemical

b)

Physical

17.

New substance created

a)

Chemical

b)

Physical

18.

Breaking a glass

a)

Chemical

b)

Physical

19.

Burning wood

a)

Chemical

b)

Physical

20.

Bike rusting

a)

Chemical

b)

Physical

21.

Crumpling tin foil

a)

Chemical

b)

Physical

22.

Baking a cake

a)

Chemical

b)

Physical

23.

Crushing a can

a)

Chemical

b)

Physical

24.

Boiling water

a)

Chemical

b)

Physical

25.

Milk going sour

a)

Chemical

b)

Physical

26.

Digesting food

a)

Chemical

b)

Physical

27.

Shredding paper

a)

Chemical

b)

Physical

28.

Apple rotting

a)

Chemical

b)

Physical

29.

Fireworks

a)

Chemical

b)

Physical

30.

Melting Wax

a)

Chemical

b)

Physical

31.

Chopping firewood

a)

Chemical

b)

Physical

32.

How can you tell the difference between a physical and a chemical change?

Your response should be in 2-3 complete sentences.

4 lines
33.

Students observed a piece of iron change from shiny to rusty. What caused this change?

a)

a chemical reaction

b)

a heat reaction

c)

a cold reaction

d)

a physical reaction

34.

Which is the best example of a new substance forming?

a)

lighting a match

b)

cutting a piece of paper

c)

popping a balloon

d)

hitting a nail with a hammer

35.

Identify the change:

Glass breaking

a)

Physical

b)

Chemical

36.

Identify the change:

Wood burning

a)

Physical

b)

Chemical

37.

Boiling Water

a)

Physical Change

b)

Chemical Change

38.

Ice cream melting

a)

Physical Change

b)

Chemical Change

39.

Dissolving Sugar

a)

Physical Change

b)

Chemical Change

40.

A Candle Burning

a)

Physical Change

b)

Chemical Change

41.

Crumpling paper

a)

Physical Change

b)

Chemical Change

42.

Nail Rusting

a)

Physical Change

b)

Chemical Change

43.

Egg Cooking

a)

Physical Change

b)

Chemical Change

44.

Condensation on a glass

a)

Physical Change

b)

Chemical Change

45.
Salt dissolves in water
a)
physical Change
b)
chemical change
46.

A student mixes yellow powder with water. Which observation would prove a CHEMICAL change occurred?

a)

The powder DISSOLVED in the water

b)

The water turned the COLOR yellow

c)

The water's TEMPERATURE changed

d)

The STATE OF MATTER changed

47.

Which observations prove a chemical change occurred ?

a)

Dissolving and expected color change

b)

Mixing and dissolving

c)

State of matter change and boiling water bubbles

d)

Unexpected color change and temperature change

48.

When mixing milk and vinegar, a white, chunky, solid substance is formed. What has occurred?

a)

Physical change: state of matter

b)

Chemical change: precipitate

c)

Physical change: freezing

d)

Chemical change: new gas

49.
A physical change can sometimes result in a color change. Which of the following situations show this?
a)
Milk turns yellow when it spoils.
b)
Dough becomes darker when it is baked into cake.
c)
A red candy dissolves and turns water pink.
d)
A match turns black when it is burned.
50.
A copper penny turning greenish after a few years is an example of ...
a)
Chemical Change
b)
Physical Change
51.
Bubbles form when two or more substances are combined ...
a)
Chemical Change
b)
Physical Change
52.

True or false?

Clues like color change, bubbles, and odors guarantee a chemical change has occurred.

a)

False, these are all clues to only physical changes.

b)

True, all are signs that a chemical change has definitely occurred.

c)

False, some of these clues can be either physical or chemical changes.

d)

False, no clues to chemical changes exist.

53.

Jack leaves solid butter near a warm surface. When Jack returns, the butter has turned into a liquid. Jack's friend Elijah insists this is a chemical change. Is Elijah right?

a)

no, because no new matter was formed

b)

yes, because the matter changed states

c)

no, because the butter didn’t have enough time to go through a chemical change

d)

yes, because melted butter is a new type of matter

54.

Dry ice causing bubbling is an example of a:

a)

Physical Change

b)

Chemical Change

55.

Which of these is NOT an indicator of a chemical change:

a)

Unexpected temperature change after combining two or more substances

b)

Two combined substances cause fizzing

c)

Bubbles and steam rise from a pot of boiling salt water

d)

Precipitates form in a solution of two or more substances

56.

Which is NOT evidence of a physical change? A change in...

a)

texture

b)

shape

c)

state

d)

molecular bonds

57.
Which is a way that a piece of paper can go through a chemical change?
a)
fold the paper in half
b)
soak the paper in water
c)
burn the paper with fire
d)
cut the paper with scissors
58.
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
59.
Which example best describes a physical change?
a)
iron rusting
b)
charcoal burning
c)
an ice cube melting
d)
a marshmallow burning
60.
Glass bottle that is shattered
a)
Chemical Change
b)
Physical Change
61.
Baking soda and vinegar combine to make carbon dioxide
a)
Chemical Change
b)
Physical Change
62.

Which of the following are examples of a Chemical Change?

a)

Iron Rusting

b)

Gas Burning

c)

Breaking a glass

d)

Boiling water

e)

Burning Wood

63.
Sodium Hydroxide dissolves in water
a)
Chemical Change
b)
Physical Change
64.
Hydrochloric acid reacts with potassium hydroxide to produce a salt, water,and heat.
a)
Chemical Change
b)
Physical Change
65.
Sugar dissolves in water
a)
Chemical Change
b)
Physical Change
66.
A pellet of sodium is sliced in two
a)
Chemical change
b)
Physical Change
67.
Grass growing in a lawn
a)
Chemical Change
b)
Physical Change
68.

A physical change _____________ the identity of the substance.

a)

changes

b)

maintains

69.

A chemical change _____________ the identity of the substance.

a)

changes

b)

maintains

70.

Color change like in a drop of food coloring in water, is a _________ change.

a)

physical

b)

chemical

71.

Copper tarnishing is an example of a ___________ change.

a)

physical

b)

chemical

72.

which of these example is a physical change?

a)
b)
c)
d)
73.
3. A glass breaks.
 Physical Change
 Chemical Change
a)
 Physical Change
b)
 Chemical Change
74.
8. Water boils at 100 degrees Celsius
 
a)
Physical Change
b)
Chemical Change
75.

Which process is an example of a physical change?

a)

Cutting Carrots into pieces and mixed in a salad

b)

A peanut butter and jelly sandwich being digested

c)

Sodium metal and water combining to form a compound and a gas

d)

Sodium metal and chlorine gas combined to form table salt

76.

Which process is a sign of a chemical change?

a)

A rotting potato gives off a bad smell

b)

A melting block of ice leaves a large puddle

c)

A cloud quickly changes shape when blown by wind

d)

A plaster statue breaks when it falls onto the floor

77.

Which of the following would be a Chemical Property?

a)

Size

b)

Flammability

c)

Color

d)

Density

78.
Blue Color: Chemical or Physical Property
a)
Chemical Property
b)
Physical Property
79.
Density: Chemical or Physical Property
a)
Chemical Property
b)
Physical Property
80.
Solubility (dissolves): Chemical or Physical Property
a)
Chemical Property
b)
Physical Property
81.
Reacts with Acid: Chemical or Physical Property
a)
Chemical Property
b)
Physical Property
82.
Reacts with Water: Chemical or Physical Property
a)
Chemical Property
b)
Physical Property
83.
Hardness: Chemical or Physical Property
a)
Chemical Property
b)
Physical Property
84.
Luster: Chemical or Physical Property
a)
Chemical Property
b)
Physical Property
85.
Reacts with Air: Chemical or Physical Property
a)
Chemical Property
b)
Physical Property
86.
Which of the following is not a chemical property? 
a)
rusting 
b)
boiling 
c)
rotting 
d)
burning 
87.
Ability to rust is this type of property:
a)
Physical property
b)
Chemical property
88.
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
89.
Is Gatorade powder dissolving in water physical or chemical change?
a)
Physical 
b)
Chemical
90.
Is copper tarnishing a physical or chemical change?
a)
Physical 
b)
Chemical
91.
What is matter?
a)
a pure substance
b)
anything that occupies space and possesses mass
c)
an element
d)
a compound
92.

What is a chemical change?

a)

Forming a new substance

b)

When two or more substances combine to make a greater one

c)

When two or more substances combine to make a new chemical substance

d)

Combing substances

93.

Which of the following options provides evidence of a CHEMICAL change?

a)

Wood is burned releasing ash and smoke

b)

Rocks separate when soil is sifted

c)

Water turns to ice when you put it in the freezer

d)

Salt dissolves in water

94.

Which of the following examples provides evidence of a PHYSICAL change?

a)

Wood is burned and releases ash and smoke

b)

Iron rusts over time

c)

When mixed, baking soda and vinegar form gas bubbles

d)

A piece of paper changes shape when you rip it up

95.

A white tablet is dropped into water. The water becomes cloudy and bubbles are produced. What type of change has occurred?

a)

Physical change

b)

Chemical change

c)

No change

96.

When mixing milk and vinegar, a white, chunky, solid substance is formed. What has occurred?

a)

Physical change: state of matter

b)

Chemical change: production of a solid

c)

Physical change: freezing

d)

Chemical change: rust

97.
A change in which NEW substances are formed.
a)
Chemical change
b)
Physical change
c)
Casual change
d)
Formal change
98.
Which of the following is NOT an example of chemical change?
a)
sour milk
b)
burning wood
c)
breaking a pencil
d)
rust
99.
Is melting butter for popcorn a chemical or physical change?
a)
chemical
b)
physical
100.
Ripping up paper ...
a)
Chemical Change
b)
Physical Change
101.
An explosion occurs ...
a)
Chemical Change
b)
Physical Change
102.

Which is the property of matter in which a substance can transfer heat or electricity?

a)

magnetism

b)

conductivity

c)

density

d)

solubility

103.

What happens when a substance undergoes a physical change?

a)

Some physical properties change, but the substance keeps its identity.

b)

No physical properties change, and the substance keeps its identity.

c)

Some physical properties change, and the substance changes its identity.

d)

No physical properties change, but the substance changes its identity.

104.

What is an example of a physical change?

a)

having less ash than the paper that was burned to form it

b)

ice forming and then melting back into water

c)

rust having a different identity than the iron it forms on

d)

the irreversible reaction of vinegar and baking soda

105.

The Statue of Liberty is made of copper that has turned green because it has undergone a change. What can be said about this change?

a)

The change is a physical change because the copper in the statue is still there.

b)

The change is a physical change because a new chemical is formed on the outside of the statue.

c)

The change is not a physical change because the color of the statue has changed.

d)

The change is not a physical change because a new chemical is formed on the outside of the statue.

106.
True or False: a physical change may produce a new substance.
a)
True
b)
False
107.
Is burning wood a chemical or physical change?
a)
chemical
b)
physical
108.
Is glass breaking a chemical or phyiscal change?
a)
chemical
b)
physical
109.

Which of the following options provides evidence of a CHEMICAL change?

a)

Wood is burned releasing ash and smoke

b)

Rocks separate when soil is sifted

c)

Water turns to ice when you put it in the freezer

d)

Salt dissolves in water

110.

 

Which is an example of a physical

change?

a)

a candle burning

b)

baking a cake

c)

evaporating water

d)

metal rusting

111.

Mowing the lawn is an example of

a)

Chemical Change

b)

Physical Change

c)

No Change

112.

Metal can be rolled into flat sheets.

a)

physical property

b)

chemical property

113.

Oxygen is colorless, odorless, and tasteless.

a)

physical property

b)

chemical property

114.

Hydrofluoric acid is poisonous.

a)

physical property

b)

chemical property

115.

Copper can be stretched into thin wires.

a)

physical property

b)

chemical property

116.

Copper metal reacts with nitric acid to form a brown gas.

a)

physical change

b)

chemical change

117.

Sodium chloride (salt) is heated until it melts.

a)

physical change

b)

chemical change

118.

Baking soda combines with vinegar to create bubbles of carbon dioxide gas.

a)

physical change

b)

chemical change

119.

A loaf of hot bread is cut into slices.

a)

physical change

b)

chemical change

120.

An apple turns brown in the presence of oxygen.

a)

physical change

b)

chemical change

121.

Mercury (a metal) is liquid at room temperature.

a)

physical property

b)

chemical property

122.

Iodine gas has a purple color.

a)

physical property

b)

chemical property

123.

Potassium burns with a purple flame and leaves behind a white powder.

a)

physical change

b)

chemical change

124.

Two colorless solutions are mixed together and a yellow precipitate is formed.

a)

physical change

b)

chemical change

125.

Gold is a shiny metal.

a)

physical property

b)

chemical property

126.

Gasoline is flammable.

a)

physical property

b)

chemical property

127.

Which of these actions cause a PHYSICAL change?

a)

rusting of metal pipes

b)

burning a log

c)

cooking an egg

d)

crushing an aluminum can

128.

Rusting metal is an example of a ____ change.

a)

chemical

b)

phase

c)

state

d)

physical

129.

Which is an example of a chemical change?

a)

baking a cake

b)

ripping paper

c)

stretching a rubber band

d)

chopping wood

130.

Frank found a pile of wood near a campsite, and he believed it had been chemically changed. What property did Frank most likely observe to believe this?

a)

the surface of the wood felt wet

b)

the color of the wood was black

c)

the wood had been chewed

d)

the wood had been chopped

131.

Use the basic properties of solids, liquids, and gases to identify the correct state of matter in the image.

a)

(A) gas, (B) liquid, (C) solid

b)

(A) solid, (B) liquid, (C) gas

c)

(A) liquid, (B) solid, (C) gas

d)

(A) solid, (B) gas, (C) liquid

132.
In physical changes, substances might change in __________ but not in __________.
a)
appearance, composition
b)
volume, state of matter
c)
texture, color
d)
weight, mass
133.
True or False: a physical change may produce a new substance.
a)
True
b)
False
134.
Which of the following is an example of a precipitate?
a)
liquid evaporating into gas
b)
a solid formed from a frozen liquid
c)
a chunk solid formed from two liquids combining
d)
a liquid solution that contains two substances
135.
Which of the following is an example of a physical change?
a)
sugar and oxygen reacting to produce water and carbon dioxide
b)
honey dissolving in tea
c)
a raw egg being cooked
d)
metal rusting after being left out in the rain
136.
A copper penny turning greenish after a few years is an example of ...
a)
Chemical Change
b)
Physical Change
137.
A change in which NEW substances are formed.
a)
Chemical change
b)
Physical change
c)
Casual change
d)
Formal change
138.
An explosion occurs ...
a)
Chemical Change
b)
Physical Change
139.
A change in the size, shape, or state of matter.
a)
chemical change
b)
physical change
140.

Cooking an egg

a)

Chemical

b)

Physical

141.

Melting Chocolate

a)

Chemical

b)

Physical

142.

Breaking a glass

a)

Chemical

b)

Physical

143.

Crumpling tin foil

a)

Chemical

b)

Physical

144.

Milk going sour

a)

Chemical

b)

Physical

145.

Digesting food

a)

Chemical

b)

Physical

146.

Egg Cooking

a)

Physical Change

b)

Chemical Change

147.

Condensation on a glass

a)

Physical Change

b)

Chemical Change

148.

What is matter?

a)

Anything that has mass and takes up space.

b)

The amount of space that an object occupies or takes up

c)

a physical combination of 2 or more substances

d)

a change of matter in size, shape or state of matter without any change in identity.

149.

What happens during a physical change?

a)

The object's identity stays the same

b)

A new substance is created

150.

What happens during a chemical change?

a)

The object's identity remains the same

b)

A new substance is created

151.

Physical or Chemical Change?

Burning a log

a)

Physical

b)

Chemical

152.

Physical or Chemical Change?

Cutting a pie in half

a)

Physical

b)

Chemical

153.

Physical or Chemical Change?

Mowing the lawn

a)

Physical

b)

Chemical

154.

Which of the following is not a sign of a chemical change?

a)

Combustion

b)

Bubbles (gas being released)

c)

Change in state of matter

d)

Precipitate is formed

155.

Which of the following is a sign of a physical change?

a)

Change in color

b)

Combustion

c)

Change in shape

d)

A precipitate is formed

156.

Which of the following is an example of a chemical change?

a)

Two liquids mix together and a solid is formed

b)

Change in size

c)

Change in shape

d)

Change in state of matter

157.

Frank has a paperclip. The paperclip has a mass of 9g and a volume of 3cm3 . What is the density of the paper clip?

a)

9

b)

3g/cm3

c)

3

d)

.33g/cm3

158.

What is the density equation?

a)

D= mv\frac{\text{m}}{\text{v}}  

b)

D= vm\frac{v}{m}  

c)

M= vd\frac{v}{d}  

159.

Danny has an envelope. The mass of the envelope is 12g and the volume is 4cm3. What is the density of the envelope?

a)

3g/cm3

b)

4g/cm3

c)

4

d)

6

160.

An acorn has a volume of 6cm3 and a mass of 18g. What is the acorn's density?

a)

3g/cm3

b)

4cm

c)

9g

d)

8g/cm3

161.

A pillow has a mass of 14g and a volume of 7cm3. How will we write the equation to find the density of the pillow?

a)

D= 14g7cm3\frac{14g}{7cm^3}  

b)

D= 7cm314g\frac{7cm^3}{14g}  

162.

What is the density of an object with a mass of 36g and a volume of 6cm3?

a)

6g/cm3

b)

6

c)

8g/cm3

163.

What tool is used to find volume?

a)

Triple Beam Balance

b)

Scale

c)

Graduated Cylinder

164.

What tool is used to find mass?

a)

Thermometer

b)

Triple Beam Balance

c)

Graduated Cylander

d)

Ruler

165.

Which of the following is a example of physical change ?

a)

burning of wood

b)

photosynthesis

c)

melting of ice-cream

d)

ripening of fruit

166.

What does the picture represent ?

a)

physical change

b)

chemical change

167.

Observe the picture and choose the correct option.

a)

Irreversible physical change

b)

Reversible physical change

168.

Choose the picture that shows chemical change.

a)
b)
c)
d)
169.

In physical change , the substance formed has different properties than the original substance.

a)

True

b)

False

170.

A chemical change may involve

a)

Evolution of gas

b)

Change in temperature

c)

Change in colour

d)

All of the above

171.

When a candle burns, both physical and chemical changes occurs.

a)

True

b)

False

172.

Which of the following is an example of a physical change?

a)

a bike rusting

b)

toast burning

c)

butter melting

d)

food spoiling

173.

Which of the following is an example of a chemical change?

a)

a penny tarnishing

b)

a mirror being scratched

c)

hair being cut

d)

water being boiled

174.

Which of the following examples provides evidence of a PHYSICAL change?

a)

Wood is burned and releases ash and smoke

b)

Iron rusts over time

c)

When mixed, baking soda and vinegar form gas bubbles

d)

Boiling water bubbles when heated

175.

A white tablet is dropped into water. The water becomes cloudy and bubbles are produced. What type of change has occurred?

a)

Physical change

b)

Chemical change

c)

No change

176.

Which observations prove a chemical change occurred

a)

Dissolving and expected color change

b)

Mixing and dissolving

c)

State of matter change and boiling water bubbles

d)

Unexpected color change and temperature change

177.

What is physical change?

a)

How two chemicals react with one another when combined

b)

A property that we can measure or observe with our 5 senses or other tools

c)

When two chemicals react with one another to form a new substance

d)

When a change occurs but it does not result in the formation of a new substance

178.
Is glass breaking a chemical or phyiscal change?
a)
chemical
b)
physical
179.

Which of these is a clue that a chemical change is happening?

a)

Fizzing or bubbling

b)

Color changes

c)

Creation/loss of heat

d)

All of these are clues that a chemical change is happening.

180.

Which of the following is a sign that a chemical reaction (or change) has occurred?

a)

change in shape

b)

melting

c)

formation of a gas

d)

dissolving

181.

Frying an egg to make an omelette is a _______________ change

a)

Reversible change

b)

Irreversible change

182.

Students mixed two liquids in a beaker and listed their observations. Based on these observations, which statement contains the best evidence that a chemical reaction occurred?

a)

There is a change in shape.

b)

There is a change in volume.

c)

The two liquids mix into a solution.

d)

The two liquids form a new substance.

183.

Which statement best describes evidence that a chemical reaction occurs as a cake bakes?

a)

The water in the cake batter evaporates.

b)

The cake rises as gas bubbles form in the baking cake.

c)

The cake takes the shape of the container in which it is baked.

d)

The water in the cake batter is used to keep the cake moist as it bakes.

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