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Combine Chemcial and Physical Changes

Total questions: 140

Worksheet time: 2hrs 33mins

Name
Class
Date
1.
Is burning wood a chemical or physical change?
a)
chemical
b)
physical
2.
Is glass breaking a chemical or phyiscal change?
a)
chemical
b)
physical
3.
Is hammering wood together to build a house a chemical or physical change?
a)
chemical
b)
physical
4.
Is a a rusting bicycle a chemical or physical change?
a)
chemcial
b)
physical
5.
Is melting butter for popcorn a chemical or physical change?
a)
chemical
b)
physical
6.
Is melting ice a chemical or physical change?
a)
chemical
b)
physical
7.
Is spoiling food a physical or chemical change?
a)
phyiscal
b)
chemical
8.
Is mixing lemonade powder with water a physical or chemical change?
a)
physical
b)
chemical
9.
Is mowing the lawn a phyiscal or chemical change?
a)
physical
b)
chemical
10.
Is corroding metal a chemical or physical change?
a)
physical
b)
chemical
11.
Is bleaching your hair a physical or chemical change?
a)
physical
b)
chemical
12.
Are fireworks exploding a physical or chemical change?
a)
phyiscal 
b)
chemical
13.
Is sqeezing organges to make orange juice a phyical or chemcial change?
a)
physical
b)
chemical
14.
Is frying an egg a physical or chemical change?
a)
chemical
b)
physical
15.
Is pouring milk in your oatmeal a physical or chemical change?
a)
physical
b)
chemical
16.
Is burning leaves a physical or chemical change?
a)
chemical
b)
physical
17.
Is making salt water to gargle with a physical or chemical change?
a)
physical
b)
chemical
18.
Is cream being whipped a physical or chemical change?
a)
physical
b)
chemical
19.
Is burning toast a chemical or physical change?
a)
physical
b)
chemical
20.
Is melting ice cream a phyiscal or chemical change?
a)
physical
b)
chemical
21.
Is sour milk a chemical or physical change?
a)
chemical
b)
physical
22.
Is rancid butter a chemical or physical change?
a)
physical
b)
chemical
23.
Is moldy cheese a chemical or physical change?
a)
chemical
b)
physical
24.
Is spoiled meat a chemical or physical change?
a)
chemical
b)
physical
25.
Is a strong gaseous odor coming from the fridge a chemical or physical change?
a)
Chemical
b)
physical
26.

What is the law of conservation of mass?

a)

Mass can only be destroyed in a chemical reaction.

b)

Mass can only be created in a chemical reaction.

c)

Mass cannot be created or destroyed in a chemical reaction.

d)

Mass can be created or destroyed in a chemical reaction.

27.

Give an example of a chemical change.

a)

Melting of ice

b)

Mixing of salt and water

c)

Burning of wood

d)

Cutting a piece of paper

28.

What is a physical change?

a)

A physical change is a change in the color of matter.

b)

A physical change is a change in the taste of matter.

c)

A physical change is a change in the smell of matter.

d)

A physical change is a change in the form or state of matter without any change in its chemical composition.

29.

True or False: According to the law of conservation of mass, mass can be created or destroyed during a chemical reaction.

a)

Only in certain reactions

b)

False

c)

Sometimes

d)

True

30.

What happens to the mass of a substance during a physical change?

a)

The mass of a substance decreases.

b)

The mass of a substance increases.

c)

The mass of a substance remains constant.

d)

The mass of a substance becomes zero.

31.

Give an example of a physical change.

a)

Boiling water into steam

b)

Melting ice into water

c)

Burning wood into ash

d)

Mixing salt and water

32.

What is the difference between a chemical change and a physical change?

a)

A chemical change occurs spontaneously, while a physical change requires external energy input.

b)

A chemical change involves a chemical reaction that results in the formation of new substances with different properties, while a physical change only involves a change in the physical properties of a substance.

c)

A chemical change is reversible, while a physical change is irreversible.

d)

A chemical change involves a change in the state of matter, while a physical change involves a change in the chemical composition of a substance.

33.
A 500-gram block of solid cheese is melted in a pot. Which is most likely the mass of the cheese after it is melted?
a)
500 grams, because the cheese does not gain or lose mass just because it was melted
b)
499 grams, because some of the cheese evaporates as it melts
c)
502 grams, because the cheese absorbs heat as it melts
34.
Jamie weighs a glass of water and observes its weight to be 12 ounces. Jamie then adds 6 ice cubes to the glass of water. Each ice cube weighs one ounce. After all of the ice cubes have melted, what will be theapproximate weight of the glass of water?
a)
6 
b)
12 
c)
18 ounces
35.
Question Image

Match the following

a)

Reactant

Element

1.

2C2

b)

Reactant

Compound

2.

CH4

c)

Product

Compound

3.

CO2

36.
For the equation:
2H2 +  O2 --> 2H2O
How much H2O will be produced if we react 4g of H2 and 32g of O2?
a)
4g
b)
32g
c)
36g
d)
28g
37.
What is the definition of a chemical change?
a)
Characteristics that describe how a substance behaves under different conditions
b)
Alteration in the physical state of matter without changing its chemical composition
c)
Transformation that results in the creation of new substances
d)
Inherent characteristics that help us identify and describe matter
38.
Which of the following is a chemical property?
a)
odor
b)
flammability
c)
boiling point
d)
conductivity
39.
What is the definition of physical changes?
a)
changes that describe how a substance behaves under different conditions
b)
characteristics that describe how a substance interacts with other substances
c)
changes that alter the form or appearance of a substance, but not its chemical composition
d)
changes that lead to the formation of new substances with different chemical properties
40.
What type of change occurs when a substance reacts with an acid?
a)
physical change
b)
neither physical nor chemical change
c)
chemical change
d)
both physical and chemical change
41.

Bubbles form when water boils. Is this evidence of chemical change?

a)

Yes, because water is changing.

b)

Yes, because the water is reacting.

c)

No, because the vapor is still water.

d)

No, because water doesn't react with anything.

42.

A student heats a beaker of water with a hot plate and over time, the water begins to bubble, the volume decreases and vapor is visible. This is an example of a ____________ change.

a)

Chemical

b)

Nuclear

c)

Physical

d)

Musical

43.

Cutting a tree limb into logs is (a)____________ and burning them in the fireplace is (b)____________.

a)

(a) A Physical Change

(b) Also a Physical Change

b)

(a) A Physical Change

(b) A Chemical Change

c)

(a) A Chemical Change

(b) Also a Chemical Change

d)

(a) A Chemical Change

(b) A Physical Change

44.

When lithium metal is dropped into a container of water, the lithium sparks and fizzes and the water begins to bubble violently. The conclusion that can be drawn from that is:

a)

A new substance is created because this is a chemical change.

b)

No new substances are created because there is a chemical change.

c)

No new substances are created because this is a physical change.

d)

A new substance is created because this is a physical change.

45.

In this example, there is no gas produced, no temperature change, no odor, and no solids formed. This must be a _________ change.

a)

Physical

b)

Emotional

c)

Hypothetical

d)

Chemical

46.

A white crystalline powder is mixed with water. No temperature change is observed but the solid disappears. This must be a __________ change.

a)

Chemical

b)

Mechanical

c)

Physical

d)

Electrical

47.

When two liquids are mixed and a solid is formed, the new solid is called a ________________.

a)

Levitate

b)

Precipitate

c)

Palpitate

d)

Bad date

48.

Percy is cutting the grass and picks up the clippings. He hates lawn work but loves the smell of cut grass. Percy has created a _________ change.

a)

Physical

b)

Chemical

49.

True or false: A chemical reaction requires at least one liquid at the start.

a)

True

b)

False

50.

A car swerves to avoid a collision with an oncoming vehicle and crashes into a tree. The tree falls over. The car is crunched. Liquids pour out of the car onto the street. Based ONLY on those observations, what happened here?

a)

Physical Changes

b)

Chemical Changes

c)

Both Chemical and Physical Changes

51.

Which of the following is a chemical change?

a)

Mixing two clear liquids and forming a blue liquid

b)

Mixing a clear liquid and white solid and getting a clear liquid

c)

Mixing a clear liquid and a dark purple solid and getting a light purple liquid

d)

Mixing a clear liquid with a white solid and getting a cloudy white liquid

52.

True or false: The only chemical changes that generates light are ones that explode or generate flames.

a)

True

b)

False

53.

This is a _____________ change.

a)

Chemical

b)

Physical

54.

This is a __________ change.

a)

Physical

b)

Metaphysical

c)

Chemical

d)

Logical

55.

This is a _________ change.

a)

Magical

b)

Chemical

c)

Physical

d)

Seussical

56.

When chameleons want to hide from predators and blend into their surroundings, they are undergoing a ___________ change in the skin.

Also, they are adorable.

a)

Physical

b)

Chemical

57.

Which of the following would be considered a physical change?

a)

Cutting paper

b)

pH test

c)

Burning marshmellow

d)

Roasting a Turkey

58.

Which of the following would be considered a physical change?

a)

Cutting paper

b)

pH test

c)

Burning marshmellow

d)

Roasting a Turkey

59.

Which of the following would be considered a physical property?

a)

Colour

b)

Flammability

c)

pH

d)

Reactivity

60.
Which of the following is represented by point 3 on the graph above. 
a)
Gas heating
b)
Sublimation
c)
Liquid Heating
d)
Evaporation
61.
Which of the following is a Physical Property 
a)
Toxicity
b)
Flammability
c)
Malleability
d)
Reactivity
62.
How would you separate a mixture of two liquids that mix (miscible)  together perfectly. 
a)
Filtration
b)
Magnetism
c)
Chromatography
d)
Distillation
63.
Which of the following would be considered a homogeneous mixture
a)
Sweet Tea
b)
Vegetable soup
c)
24 Karat Gold
d)
Distilled water
64.
A block of metal has a mass of 14.0 Kg and a volume of 2.0 Liters what is the density?
a)
14.0 kg/L 
b)
7.0 Kg/L
c)
2.0 Kg/L 
d)
0.5 Kg/l
65.

Which Restaurant is the most disgusting

a)

Olive garden

b)

Burger King

c)

Subway

d)

Chili's

66.
No Definite Shape and No Definite Volume
a)
Gas
b)
Liquid
c)
Solid
67.
Phase change from a solid to a gas.
a)
sublimation
b)
deposition
c)
condensation
d)
evaporation
68.
When the temperature of matter decreases the particles ...
a)
speed up and move farther apart
b)
speed up and move closer together
c)
slow down and move farther apart
d)
slow down and move closer together
69.
A gas
a)
has a definite shape but no definite volume
b)
has a definite volume but no definite shape
c)
has fast-moving particles
70.
During a phase change, the temperature
a)
increases
b)
decreases
c)
fluctuates
d)
stays the same
71.
According to the phase diagram, water exists as a _____________ at 700 mmHg and 50 °C.
a)
solid
b)
liquid
c)
gas
d)
supercritical fluid
72.
The pressure is increased on a sample of water at 0 °C from 0 mmHg to 800 mmHg.  In order, what changes occur?
a)
deposition, melting
b)
sublimation, melting
c)
condensation, freezing
d)
deposition, freezing
73.
What state of matter is X?
a)
solid 
b)
liquid
c)
gas
d)
supercritical fluid
74.
Iron rusts.
a)
Chemical change
b)
Physical Change
75.
Milk Sours
a)
Chemical Change
b)
Physical Change
76.
A tire is inflated with air.
a)
Chemical Change
b)
Physical Change
77.
Food is digested in the stomach
a)
Chemical Change
b)
Physical Change
78.
Which of the following is a Physical Property 
a)
Toxicity
b)
Flammability
c)
Malleability
d)
Reactivity
79.
Is freezing juice a physical or chemical change?
a)
Physical Change
b)
Chemical Change
80.
Any change in the state of matter of a substance is a...
a)
Physical Change
b)
Chemical Change
81.
Evidence of a physical change.
a)
New substance
b)
Shape Change
c)
Light produced
d)
Gas released.
82.

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

83.

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

84.

Which of the following would be considered a physical property?

a)

Colour

b)

Flammability

c)

pH

d)

Reactivity

85.
Flammability
a)
Physical property
b)
Chemical property
86.
Bitter taste
a)
Physical property
b)
Chemical property
87.
Melting point
a)
Physical property
b)
Chemical property
88.
Boiling point
a)
Physical property
b)
Chemical property
89.
Red color
a)
Physical property
b)
Chemical property
90.
Which is an example of a chemical change?
a)
baking a cake
b)
freezing water
c)
crushing a can
d)
breaking an egg
91.
Which example best describes a physical change?
a)
iron rusting
b)
charcoal burning
c)
an ice cube melting
d)
a marshmallow burning
92.
When coffee is poured into a cup of ice, the ice begins to melt and mix with the coffee. Which statement best describes this change?
a)
The ice melting is a chemical change because the water changes form.
b)
The ice melting is a physical change because the water may be frozen again.
c)
The water and coffee mixing is a chemical change because the liquids change color.
d)
The water and coffee mixing is a physical change because the mixture forms bubbles.
93.
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
94.
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
95.
Which example best describes a physical change?
a)
iron rusting
b)
charcoal burning
c)
an ice cube melting
d)
a marshmallow burning
96.
Glass bottle that is shattered
a)
Chemical Change
b)
Physical Change
97.
Baking soda and vinegar combine to make carbon dioxide
a)
Chemical Change
b)
Physical Change
98.

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

99.
Sodium Hydroxide dissolves in water
a)
Chemical Change
b)
Physical Change
100.
Hydrochloric acid reacts with potassium hydroxide to produce a salt, water,and heat.
a)
Chemical Change
b)
Physical Change
101.
Sugar dissolves in water
a)
Chemical Change
b)
Physical Change
102.
A pellet of sodium is sliced in two
a)
Chemical change
b)
Physical Change
103.
Grass growing in a lawn
a)
Chemical Change
b)
Physical Change
104.

A physical change _____________ the identity of the substance.

a)

changes

b)

maintains

105.

A chemical change _____________ the identity of the substance.

a)

changes

b)

maintains

106.

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

a)

physical

b)

chemical

107.

Copper tarnishing is an example of a ___________ change.

a)

physical

b)

chemical

108.

which of these example is a physical change?

a)
b)
c)
d)
109.
3. A glass breaks.
 Physical Change
 Chemical Change
a)
 Physical Change
b)
 Chemical Change
110.
8. Water boils at 100 degrees Celsius
 
a)
Physical Change
b)
Chemical Change
111.

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

112.

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

113.

Match the following

a)

precipitate

b)

color change

c)

exothermic reaction

d)

Bubble production

1
1)
114.

Draw an example of a chemical change

115.

Organize these options into the right categories

Categorize the following

Chewing

Peristalsis

Folding

Chopping

saliva

Stomach acid

Fever

Burning

color change

Physical Change
Chemical Change
116.

​_​ is the pushing of food through the digestive tract (intestines).​ (a)  

Choose from the below words
Peristalsis
chewing
salivating
stomachchurning
117.

Match the following

a)

Please

1.

Production of a gas

b)

Excuse

2.

Exo/ Endo thermic reaction (TEMPERATURE)

c)

Coughs

3.

Color change

d)

Burps

4.

Bubbles produced

e)

Sneezes

5.

Smell change

118.

Draw an example of a chemical change

119.

Let's play a fun game of True or False! Here's your question: Mechanical Change and Physical Change are the same thing. What do you think?

a)

True

b)

False

120.

Imagine you're a tiny person traveling through a giant sandwich. Which of the following would you consider a physical change during this wild journey?

a)

Seeing a gas being produced

b)

Witnessing the formation of a precipitate

c)

Experiencing teeth cutting and crushing the sandwich into smaller pieces

d)

Observing digestion with HCl in the stomach

121.

Imagine you're a mad scientist conducting an experiment in your lab! Can you tell me the key difference between a physical change and a chemical change when you're transforming one substance into another?

a)

Physical changes in my experiments, like melting ice into water, always involve the production of heat or light

b)

Chemical changes in my experiments, like burning a piece of paper, change the size of a particle of a substance

c)

Chemical changes in my experiments, like rusting of iron, transform a substance into a completely different substance

d)

Chemical changes in my experiments, like dissolving sugar in water, do not change the identity of the substance

122.

Imagine you're a scientist observing the digestion process in a lab. Which of these scenarios would be an example of a chemical change you'd witness during digestion?

a)

Teeth acting like a knife, cutting and crushing food into smaller pieces

b)

Food being tossed around like clothes in a washing machine in the stomach

c)

Food getting mixed with saliva, which is like a chemical solution containing enzymes

d)

Food being digested with HCl, like a chemical reaction happening in the stomach

123.

Imagine you're a scientist observing a series of experiments. Can you identify the tell-tale signs of a chemical change?

a)

Is it the production of a gas, an unexpected color change, formation of a precipitate, and the production of heat or light during a chemical reaction in a lab?

b)

Or is it teeth cutting and crushing food into smaller pieces during a meal?

c)

Could it be food churning in the stomach after eating?

d)

Or is it when food mixes with saliva (which contains enzymes) while chewing?

124.

Imagine you're a piece of pizza. What would peristalsis do to you in the human body?

a)

Turn you into a glowing, warm piece of pizza

b)

Transform your size

c)

Propel you through the esophagus like a slide

d)

Mix you up with saliva like in a blender

125.

Imagine you're a grain of sand on a beach. You can become smaller or change your state from solid to liquid or gas, but you can't change the fact that you're sand. Sounds like a physical change, doesn't it?

a)

True

b)

False

126.
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
127.
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
128.
Which example best describes a physical change?
a)
iron rusting
b)
charcoal burning
c)
an ice cube melting
d)
a marshmallow burning
129.
Glass bottle that is shattered
a)
Chemical Change
b)
Physical Change
130.
Baking soda and vinegar combine to make carbon dioxide
a)
Chemical Change
b)
Physical Change
131.

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

132.
Sodium Hydroxide dissolves in water
a)
Chemical Change
b)
Physical Change
133.
Hydrochloric acid reacts with potassium hydroxide to produce a salt, water,and heat.
a)
Chemical Change
b)
Physical Change
134.
A pellet of sodium is sliced in two
a)
Chemical change
b)
Physical Change
135.
Sugar dissolves in water
a)
Chemical Change
b)
Physical Change
136.
Grass growing in a lawn
a)
Chemical Change
b)
Physical Change
137.

A physical change _____________ the identity of the substance.

a)

changes

b)

maintains

138.

A chemical change _____________ the identity of the substance.

a)

changes

b)

maintains

139.

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

a)

physical

b)

chemical

140.

Copper tarnishing is an example of a ___________ change.

a)

physical

b)

chemical

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