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Worksheets

P6 PHYSICAL AND CHEMICAL CHANGES

Total questions: 150

Worksheet time: 2hrs 58mins

Name
Class
Date
1.

While camping, Nisa noticed that burning wood creates heat and light. This process is a

a)

chemical change

b)

physical change

2.

Nita accidentally dropped a glass on the floor, causing it to shatter into pieces. This event is an example of a

a)

chemical change

b)

physical change

3.

Dian is melting butter to prepare popcorn for movie night. This process is a

a)

chemical change

b)

physical change

4.

After Angga put an ice pack in the freezer for an hour, it got cold. This is a

a)

chemical Change

b)

physical Change

5.

Wawan put an ice pack in the freezer for an hour, and it got cold. This is a

a)

chemical Change

b)

physical Change

6.

While conducting an experiment, Adi mixed vinegar and baking soda, resulting in bubbles and a fizzing reaction. This is an example of a change in which NEW substances are formed.

a)

Chemical change

b)

Physical change

7.

Joko is making a saltwater solution by adding salt to a glass of water. What type of change is this?

a)

physical change

b)

chemical change

8.

During the New Year's celebration, Mega set off some fireworks. Exploding fireworks is a

a)

Physical Change

b)

Chemical Change

c)

Katy Perry Song

9.

Rani is melting a chocolate bar for her dessert. This process is a

a)

Physical Change

b)

Chemical Change

c)

Willy Wonka's Job

10.

Adi and Dewi were discussing the changes that occur when ice melts. They wondered, which answer below makes a correct statement about physical changes?

a)

Physical change only changes the color.

b)

Physical change only changes the size.

c)

Physical change changes the matter into something totally different.

d)

Physical change begins and ends with the same matter.

11.

Laila is conducting an experiment in her chemistry class. She mixes vinegar and baking soda in a beaker and notices some bubbles forming. Which of the following is a sign that a chemical reaction has occurred?

a)

change in shape

b)

melting

c)

formation of a gas

d)

dissolving

12.

During art class, Tiara crumpled a piece of paper, Rudi sharpened his pencil, Mega accidentally shrank her clothing in the wash, and they all noticed that the old bike left outside had developed rust. Which of the following is NOT an example of a physical change?

a)

crumpled paper

b)

pencil sharpening

c)

shrunken clothing

d)

rust

13.

During a science experiment, Tiara noticed that the color of a liquid changed when she mixed two solutions together. Is this change in color a physical change?

a)

True

b)

False

14.

While conducting a science experiment, Joko noticed that when he mixed vinegar and baking soda, it started fizzing, foaming, and producing heat. These observations are all examples of

a)

Chemical change

b)

Physical change

15.

Dewi noticed that an iron bar left outside had developed rust. Is this an example of a chemical change?

a)

True

b)

False

16.

When Mega is chopping a log into small pieces for a campfire, is this a chemical change?

a)

true

b)

false

17.

Which is an example of a chemical reaction that Ratna observed while baking?

a)

paper cut into small pieces

b)

chocolate melting in a pan

c)

flour and sugar mixed in a bowl

d)

cookies baking in an oven

18.

Surya is studying the process of photosynthesis in plants. He wonders whether it is a physical change or a chemical change.

a)

Physical change

b)

Chemical change

19.

Angga is mixing blue and yellow paint to create green. What type of change is this?

a)

Physical change

b)

Chemical change

20.

While camping, Adi decided to roast a marshmallow over the fire.

a)

Physical change

b)

Chemical change

21.

Eko is sitting by the campfire, watching the logs burn.

a)

Physical change

b)

Chemical change

22.

A rotting strawberry that Heri found in the fridge

a)

Physical change

b)

Chemical change

23.

Rani is cracking an egg to make an omelette.

a)

Physical change

b)

Chemical change

24.

Adi is chewing his food, breaking it down in his mouth with his teeth.

a)

Physical change

b)

Chemical change

25.

Yuni observed that water evaporates from the surface of the ocean

a)

Physical change

b)

Chemical change

26.

Cutting a pizza for Susi and her friends

a)

Physical change

b)

Chemical change

27.

Nita noticed that the snow melting in her driveway was creating puddles.

a)

Physical change

b)

Chemical change

28.

Dian 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 bag's TEMPERATURE changed

d)

The STATE OF MATTER changed

29.

Rudi is boiling water for his tea, and he notices that the water bubbles when heated. 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

30.

While camping, Sari noticed that when she burned some wood in the fire, it released ash and smoke. 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)

Boiling water bubbles when heated

d)

Salt dissolves in water

31.

Joko dropped a white tablet into a glass of water. The water became cloudy and bubbles were produced. What type of change has occurred?

a)

Physical change

b)

Chemical change

c)

No change

32.

Laila is boiling water on a stove, producing steam. What conclusion can you make about the change that is occurring?

a)

Boiling water bubbles indicate a chemical change

b)

Steam indicates a state of matter change

c)

Heat indicates a chemical change

d)

The clear color indicates a chemical change

33.

Nur and Laila were conducting an experiment in the lab. They mixed two clear solutions and observed an unexpected color change and a temperature change. What 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

34.

Sari and Adi are mixing two liquids in a science experiment, and they notice that a solid forms as a result. What is this process called?

a)

pre-color

b)

precipitation

c)

precipitate

d)

pretest

35.

When Nisa mixed milk and vinegar for her cooking project, a white, chunky, solid substance was formed. What has occurred?

a)

Physical change: state of matter

b)

Chemical change: precipitate

c)

Physical change: freezing

d)

Chemical change: rust

36.

Surya is mixing vinegar and baking soda in a bowl. What can we conclude about the changes happening in the bowl?

a)

A physical change produces a new substance

b)

A chemical change does not produce a new substance

c)

A physical change can produce a precipitate

d)

A chemical change can produce a precipitate

37.

When Yuni left her bicycle outside for a long time, she noticed that it started to develop a reddish-brown coating. This is an example of what?

a)

A new substance forming

b)

Color change: no new substance

c)

Shape change: no new substance

d)

Burning: a new substance

38.

Adi was mixing vinegar and baking soda for a science project, and he noticed that new bubbles formed and the mixture fizzed. Changes in which one or more new substance is formed are called

a)

phases of matter

b)

chemical changes

c)

physical changes

39.

Dian was experimenting in the kitchen and noticed that when she melted some chocolate, it returned to its solid form once cooled. She wondered about the type of changes that do not form a new substance and are reversible. What would you call these changes?

a)

phases

b)

physical changes

c)

chemical changes

40.

While conducting an experiment in the school lab, Lina noticed a change in color, the production of light, and the release of gas when she mixed two substances. These observations are clues that a ___ change has occurred.

a)

chemical change

b)

physical change

c)

change in state of matter

41.

Surya noticed that the ice cubes in his drink were melting and turning into water. This process of water changing from a solid to a liquid is a

a)

chemical change

b)

physical change

c)

change in the phase of matter

d)

both a physical change and a change in phase of matter

42.

Heri is mixing sugar into a glass of water. This process...

a)

changes the physical properties of an object, but does not create a new substance.

b)

creates a new substance and cannot be undone.

43.

Hadi found a piece of bread in a sealed bag that had developed green mold. What does this picture represent?

a)

physical change

b)

chemical change

44.

Hadi mixed vinegar and baking soda in a bottle. What type of change occurred during this reaction?

a)

changes the physical properties of an object, but does not create a new substance.

b)

creates a new substance and cannot be undone.

45.

Is boiling water on the stove an example of a physical or chemical change?

a)

physical

b)

chemical

46.

While sitting by the fireplace, Ratna noticed the logs burning brightly. What type of change is occurring as the logs burn?

a)

Physical Change

b)

Chemical Change

47.

Wawan is frying an egg in a pan. What type of change is occurring during this process?

a)

Physical Change

b)

Chemical Change

48.

Surya is considering bleaching or dying his hair. What type of change is this?

a)

Physical Change

b)

Chemical Change

49.

While working on a science project, Titi melted a chocolate bar. This change describes a substance that changes shape, form, or appearance but is still the same substance. What type of change is this?

a)

physical change

b)

chemical change

50.

What happens when a new substance is produced during a reaction in Sari's science experiment?

a)

chemical change

b)

physical change

51.
When you burn toast, the results are a 
a)
Chemical change
b)
Physical change
52.

Is this a physical or chemical change?

a)

Physical

b)

Chemical

53.

Which of the following observations would indicate a chemical change has happened? Select ALL correct answers.

a)

a solid precipitate forms

b)

heat energy is released

c)

breaks into smaller pieces

d)

folded in half

e)

a gas is produced

54.

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.

55.

Wood is chopped into small pieces. Then, it is burned to cook food. This is an example of a ____ change followed by a ____ change.

a)

chemical, physical

b)

physical, chemical

c)

physical, physical

d)

chemical, chemical

56.

True/False --- As this water freezes, the change in color means a chemical change has occurred.

a)

True

b)

False

57.

A physical change...

a)

changes the physical properties of an object, but does not create a new substance.

b)

creates a new substance and cannot be undone.

58.

Is this an example of a physical or chemical change?

a)

physical

b)

chemical

59.

True or False!

Matter is everything around us!

Everything we see, touch, breathe!

a)

True

b)

False

60.

Matter can be in different states, either solid, liquid, or gas.

Is an Ice Cube a solid, liquid, or gas?

a)

Solid

b)

Liquid

c)

Gas

61.

True or False?

A Physical Change changes the form or shape of a substance, not the identity.

a)

True

b)

False

62.

When an Ice Cube melts it turns into a liquid, but the substance stays the same, H2O. Is ice melting a physical or chemical change?

a)

Physical

b)

Chemical

63.

Someone puts a water bottle in the freezer and it turns to ice. Is this an example of a physical change?

a)

Yes, because a new substance was not formed

b)

No, because a change in state of matter occurred

64.

If a students is combining two substances and see bubbles and fizzing, a _________ is probably taking place.

a)

Physical Change

b)

Chemical Change

65.

When baking soda and vinegar are mixed, immediately there are bubbles and fizzing. What does this show?

a)

Formation of a precipitate

b)

Formation of a gas

c)

Formation of a new liquid

66.

What is a physical change?

a)

A change in a substance.

b)

A mixture

c)

A change in a state of matter

d)

A change where substances stays the same.

67.

What is a chemical change?

a)

A change to the substance that can't be undone.

b)

A change to the substance that can be undone.

c)

A change in a substance that does not create a new substance.

d)

An expected color change

68.

What is melting?

a)

Solid-gas

b)

Liquid-Solid

c)

Solid-Liquid

d)

Gas-Solid

69.

Is a exothermic chemical reaction where the substance releases heat to cause the temperature to change?

a)

True

b)

False

70.

Is a chemical change permanent?

a)

True

b)

False

71.

Wood that is burning in a brush pile has heat, and produces ashes.

a)

Physical

b)

Chemical

72.

Is milk going sour a physical or chemical change?

a)

Physical

b)

Chemical

73.

Which of the following is a physical change?

a)

Dissolving

b)

Rapid release of heat

c)

Fizzing (release of gas)

d)

Rusting

74.

Describes how matter reacts with other matter. Examples: flammability and toxicity.

a)

physical properties

b)

chemical properties

75.
Photosynthesis is an example of a
a)
physical change
b)
chemical change
76.
Melting a chocolate bar is an example of a(n)  ______________ .
a)
physical change
b)
chemical change 
c)
photosynthesis
d)
heredity
77.
Rotting bananas is an example of a(n) ___________ .
a)
physical change
b)
chemical change
c)
heredity
d)
cloning
78.
Cutting your hair is an example of a(n) __________ .
a)
physical change
b)
chemical change
c)
photosynthesis
d)
selective breeding
79.
Is squeezing oranges to make orange juice a physical or chemical change?
a)
physical
b)
chemical
80.
The diagram below shows changes happening to water in a specially shaped bottle.
What changes did the water undergo?
a)
melting and then freezing
b)
freezing and then evaporation
c)
condensation and then melting
d)
evaporation and then condensation
81.
A group of students investigated physical and chemical changes using paper.  The students recorded their observations in a table.
Which student correctly recorded all the changes that took place?
a)
Student 1
b)
Student 2
c)
Student 3
d)
Student 4
82.

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

83.

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

84.

Which is an example of a different substance being formed?

a)

glass breaking

b)

metal melting

c)

water freezing

d)

wood burning

85.

Identify the change:

Wood burning

a)

Physical

b)

Chemical

86.

Bending metal

a)

Physical Change

b)

Chemical Change

87.

Boiling Water

a)

Physical Change

b)

Chemical Change

88.

If enough heat it taken away or removed from a container of water, what will happen to the water?

a)

It will begin to boil.

b)

It will turn into a gas.

c)

It will become a solid.

d)

It will increase in weight.

89.

What happens when a piece of wood burns?

a)

A physical change takes place.

b)

A chemical change takes place.

c)

The wood loses its gravity.

d)

The wood becomes a tree again.

90.

Which answer below makes a correct statement?

a)

Physical change only changes the color.

b)

Physical change only changes the size.

c)

Physical change changes the matter into something totally different.

d)

Physical change begins and ends with the same matter.

91.

Which is NOT an example of condensation?

a)

A bucket of water left uncovered eventually becomes empty.

b)

Dew is found on the grass on a summer morning.

c)

Drops of water form on a cold can of soda on a hot day.

d)

The walls of a bathroom are damp after someone takes a shower.

92.

Students watched as small drops of water collected on the outside of a glass. Which statement BEST describes why the water vapor in the air formed liquid water on the outside of the glass?

a)

The humidity outside of the glass turns the vapor to liquid water.

b)

The water vapor pulls the water from inside the glass to outside the glass.

c)

The temperature of the water inside the glass is colder than the air outside the glass.

d)

The temperature of the water inside the glass is warmer than the air outside the glass.

93.
Which of the following is an example of sublimation?
a)
Dry Ice
b)
Water boiling into steam
c)
Ice cream melting
d)
Water freezing into ice
94.
Which of the following indicates a chemical change?
a)
Change in state of matter
b)
Temperature change
c)
Change in size 
d)
Change in shape
95.
A solid substance that forms when 2 liquid solutions are combined?
a)
Sublimation
b)
Precipitate
c)
Condensation
d)
Freezing
96.
Which of the following DOES NOT indicate a chemical change/reaction is occurring?
a)
Color Change
b)
Formation of a Precipitate
c)
Formation of gas/bubbles
d)
State of matter change
97.
Which of the following indicates a PHYSICAL change?
a)
Change in temperature
b)
Change in shape
c)
Formation of a precipitate
d)
Change in color
98.
Physical or Chemical Change?  Making a paper airplane.
a)
Physical Change
b)
Chemical Change
99.

What type of change can be easily reversed?

a)

chemical change

b)

physical change

c)

both chemical and physical changes

d)

neither physical or chemical changes

100.

Which of the following examples is a physical change but NOT a change of state of matter?

a)

logs burning

b)

water freezing into ice cubes

c)

candle wax melting

d)

paper being cut

101.

Mixing baking soda and vinegar produces bubbles. What type of change is this?

a)

Physical change

b)

Chemical change

102.

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

a)

Cooking an egg

b)

Burning paper

c)

Melting ice

d)

Rusting iron

103.

When a candle burns, it undergoes a change. What type of change is this?

a)

Physical change

b)

Chemical change

104.

What type of change occurs when ice melts into water?

a)

chemical change

b)

physical change

105.

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

a)

Rusting iron

b)

Boiling water

c)

Cooking an egg

d)

Burning paper

106.

When a candle burns, what type of change is taking place?

a)

Chemical change

b)

Physical change

107.

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

a)

Rust forming on metal

b)

Melting ice

c)

Burning paper

108.

What type of change occurs when a candle burns?

a)

Chemical change

b)

Physical change

109.

What is an indication that a chemical change has occurred when vinegar is mixed with baking soda?

a)

Temperature remains constant

b)

Solid dissolves in liquid

c)

Change in color

d)

Formation of bubbles

110.

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

a)

Iron rusting

b)

Milk souring

c)

Wood burning

d)

Ice melting

111.

When a candle burns, what type of change is taking place?

a)

Chemical change

b)

Physical change

112.

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

a)

Rusting iron

b)

Cooking an egg

c)

Melting ice

d)

Burning wood

113.

What type of change occurs when a candle burns?

a)

Chemical change

b)

Physical change

114.

Which of the following indicates a chemical change?

a)

Change in size

b)

Formation of a precipitate

c)

Change in temperature without heat added

d)

Change in state

115.

What is the result of mixing vinegar and baking soda?

a)

Physical change

b)

Chemical change

116.

Which of the following indicates a physical change?

a)

Ice melting into water

b)

Wood burning

c)

Milk souring

d)

Rust forming on metal

117.

When a candle burns, what type of change is occurring?

a)

Physical change

b)

Chemical change

118.

What type of change occurs when a candle burns and produces wax and smoke?

a)

Physical change

b)

Chemical change

119.

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

a)

Rust forming on metal

b)

Burning paper

c)

Cooking an egg

d)

Melting ice

120.

When baking bread, the dough rises due to the production of gas. What type of change is this?

a)

Physical change

b)

Chemical change

121.

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

a)

Milk souring

b)

Wood burning

c)

Ice melting into water

d)

Rust forming on iron

122.

What is a common indicator of a chemical change?

a)

Change in temperature

b)

Change in size

c)

Change in color without heat

d)

Change in state of matter

123.

Which process is an example of a chemical change?

a)

Boiling water

b)

Freezing juice

c)

Chopping vegetables

d)

Burning gasoline

124.

What type of change occurs when ice melts into water?

a)

Chemical change

b)

Physical change

c)

Both chemical and physical change

125.

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

a)

Freezing water

b)

Burning paper

c)

Chopping wood

d)

Melting ice

126.

When vinegar is mixed with baking soda, what type of change occurs?

a)

No change

b)

Physical change

c)

Chemical change

127.

What is a common indicator that a chemical change has taken place?

a)

Change in temperature

b)

Formation of a gas

c)

Change in color

d)

Change in size

128.

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

a)

Cooking an egg

b)

Rust forming on iron

c)

Mixing sand and salt

d)

Burning paper

129.

What type of change occurs when a substance undergoes a reaction and produces a new substance?

a)

Chemical change

b)

Physical change

130.

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

a)

Burning paper

b)

Cooking an egg

c)

Melting ice

d)

Rust forming on metal

131.

What type of change occurs when a candle burns?

a)

Chemical change

b)

Physical change

132.

Which observation indicates a physical change?

a)

Temperature increases significantly

b)

Substance dissolves in water

c)

Color change occurs

d)

Gas is produced

133.

When a candle burns, it melts and produces wax and smoke. Which of the following is an example of a physical change?

a)

Smoke produced

b)

Burning wick

c)

Color change of the wax

d)

Melting wax

134.

During a cooking experiment, Rina mixed flour and water to make dough. What type of change is this?

a)

Chemical change

b)

Physical change

135.

When ice cream melts in the sun, it changes from solid to liquid. Is this an example of a physical change?

a)

True

b)

False

136.

When a candle burns, the wax melts and changes shape. What type of change is this?

a)

Chemical change

b)

Physical change

137.

After mixing two clear liquids, Rina observed that a solid formed at the bottom of the container. What is this process called?

a)

Condensation

b)

Precipitation

c)

Evaporation

138.

When you rust iron, it changes color and becomes brittle. This is an example of a

a)

Chemical change

b)

Physical change

139.

When a candle burns, it undergoes a change. What type of change is this?

a)

Physical change

b)

Chemical change

140.

During a science experiment, Amir mixed two clear liquids and observed a color change. What does this indicate?

a)

Chemical change

b)

Physical change

141.

What type of change occurs when ice cream melts in the sun?

a)

Physical change

b)

Chemical change

142.

When a candle burns, the wax melts and then solidifies again. What type of change is this?

a)

Chemical change

b)

Physical change

143.

After mixing two clear liquids, Sam observed that a solid formed at the bottom of the container. This indicates a:

a)

Chemical change

b)

Physical change

144.

While cooking, Maya noticed that the bread she was baking turned brown. This is an example of a:

a)

Chemical change

b)

Physical change

145.

Rina is mixing flour and water to make dough. What type of change is this?

a)

Chemical change

b)

Physical change

146.

When a candle burns, what type of change is taking place?

a)

Chemical change

b)

Physical change

147.

During a science experiment, Amir observed that when he added salt to water, it dissolved completely. What type of change does this represent?

a)

Chemical change

b)

Physical change

148.

When Rina mixed baking soda with lemon juice, a fizzing reaction occurred. What type of change is this?

a)

Physical Change

b)

Chemical Change

149.

While making a salad, Amir chopped vegetables into smaller pieces. Is this a chemical change?

a)

false

b)

true

150.

After leaving a metal spoon in water for a long time, it started to rust. This is an example of a

a)

Chemical Change

b)

Physical Change