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Worksheets

7.6C Physical & Chemical Changes

Total questions: 80

Worksheet time: 47mins

Name
Class
Date
1.

Grace is sitting by a campfire and notices the wood turning into ash and smoke. Is this process a chemical or physical change?

a)

chemical

b)

physical

2.

Abigail accidentally dropped a glass cup, and it shattered on the floor. Is this glass breaking a chemical or physical change?

a)

chemical

b)

physical

3.

Benjamin left his bicycle outside in the rain for several weeks. Is a a rusting bicycle a chemical or physical change?

a)

chemcial

b)

physical

4.

Kai observed ice cubes melting in a glass of water. Is melting ice a chemical or physical change?

a)

chemical

b)

physical

5.

Luna is cooking breakfast and decides to fry an egg. Is frying an egg a physical or chemical change?

a)

chemical

b)

physical

6.

Which is an example of a chemical change?

a)
b)
c)
d)
7.

Which is an example of a chemical change?

a)
b)
c)
d)
8.

Which is an example of a physical change?

a)
b)
c)
d)
9.

Isla is painting her room. Which is an example of a physical property she might consider?

a)

color

b)

flammability

c)

reactivity

d)

toxicity

10.

Anika is conducting an experiment in her science class. She wants to identify a chemical property of a substance. Which of the following should she consider?

a)

color

b)

flammability

c)

shape

d)

size

11.

Aria and Aiden 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

12.

Benjamin is conducting a science experiment. 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

13.

Henry is bending a metal rod to fit it into a toolbox. What type of change is this?

a)

Physical Change

b)

Chemical Change

14.

Charlotte is observing a pot of water on the stove. What type of change is occurring as the water boils?

a)

Physical Change

b)

Chemical Change

15.

Jackson is observing a Candle Burning

a)

Physical Change

b)

Chemical Change

16.

David noticed a shape change in the ice cube as it melted. What is this an evidence of?

a)

New substance

b)

Shape Change

c)

Light produced

d)

Gas released.

17.

Emma is melting a chocolate bar. What type of change is this?

a)

Physical Change

b)

Chemical Change 

18.

Kai and Scarlett are conducting an experiment where they combine baking soda and vinegar to make carbon dioxide.

a)

Chemical Change

b)

Physical Change

19.

Isla and Grace are watching fireworks exploding in the sky. Is this a physical change or a chemical change?

a)

physical change

b)

chemical change

20.

Noah is ripping up paper ...

a)

Chemical Change

b)

Physical Change

21.

Emma is cutting a tree limb into logs, which 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

22.

When Aria and Noah mixed two liquids in the lab and a solid was formed, the new solid is called a ________________.

a)

Levitate

b)

Precipitate

c)

Palpitate

d)

Bad date

23.

Noah is conducting an experiment in his chemistry class. 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

24.

Avery observed that ice melting into water is a __________ change.

a)

Physical

b)

Metaphysical

c)

Chemical

d)

Logical

25.

James observed a _________ change in the experiment.

a)

Magical

b)

Chemical

c)

Physical

d)

Seussical

26.

Henry is learning about the human body and wonders about the ability to digest food. What type of process is digestion?

a)

Chemical

b)

Physical

27.

Elijah is making a sports drink by dissolving Gatorade powder in water. Is this a physical or chemical change?

a)

Physical 

b)

Chemical

28.

Charlotte is baking cupcakes in the kitchen. Is this a physical change or a chemical change?

a)

Physical Change

b)

Chemical Change

29.

Aiden is observing a candle burning in his room. What kind of change is a burning candle?

a)

chemical change

b)

physical change

30.

Charlotte is cooking breakfast and decides to fry an egg. What kind of change is this?

a)

chemical change

b)

physical change

31.

What kind of change is it when a firework explodes during a festival celebration?

a)

physical change

b)

chemical change

32.

When Mia bakes cookies, what type of change is occurring?

a)

chemical change

b)

physical change

33.

Charlotte noticed a banana rotting on the kitchen counter. What type of change is this?

a)

chemical change

b)

physical change

34.

Charlotte and Oliver are conducting an experiment where they mix baking soda and vinegar. What type of change is this?

a)

chemical change

b)

physical change

35.

Avery noticed that the metal gate in their backyard was rusting. What type of change is this?

a)

chemical change

b)

physical change

36.
a)

chemical change

b)

physical change

37.
a)

chemical change

b)

physical change

38.
a)

chemical change

b)

physical change

39.

Emma left her ice cream out in the sun. Ice cream melting is what type of change?

a)

chemical change

b)

physical change

40.

Emma is cutting a pizza into 8 separate slices. What type of change is this?

a)

chemical change

b)

physical change

41.
a)

chemical change

b)

physical change

42.

Aria is observing a piece of ice melting in a glass. Is this change Physical or Chemical?

a)

Physical

b)

Chemical

43.

Abigail is observing a piece of metal rusting over time. Is this change Physical or Chemical?

a)

Physical

b)

Chemical

44.

James is observing a piece of ice melting in a glass. Is this change Physical or Chemical?

a)

Physical

b)

Chemical

45.

Benjamin is observing a piece of metal rusting over time. Is this change Physical or Chemical?

a)

Physical

b)

Chemical

46.

Hannah is observing a piece of ice melting in a glass. Is this change Physical or Chemical?

a)

Physical

b)

Chemical

47.

Hannah is observing the process of ice melting into water. Is this change Physical or Chemical?

a)

Physical

b)

Chemical

48.

Charlotte is observing a piece of metal rusting over time. Is this change Physical or Chemical?

a)

Physical

b)

Chemical

49.

Noah is observing a campfire. He notices the wood turning into ash and smoke. Is this change Physical or Chemical?

a)

Physical

b)

Chemical

50.

Aria is observing a piece of ice melting in a glass. Is this change Physical or Chemical?

a)

Physical

b)

Chemical

51.

Ethan is sitting by a campfire and notices the wood turning into ash and smoke. Is burning wood a chemical or physical change?

a)

chemical

b)

physical

52.

Liam accidentally dropped a glass cup, and it shattered on the floor. Is this a chemical or physical change?

a)

chemical

b)

physical

53.

Aiden left his bicycle outside in the rain for a week. Is a a rusting bicycle a chemical or physical change?

a)

chemcial

b)

physical

54.

Oliver observed ice cubes melting in a glass of water. Is this melting ice a chemical or physical change?

a)

chemical

b)

physical

55.

Grace left a sandwich in her backpack over the weekend. Is the spoiling of the sandwich a physical or chemical change?

a)

physical

b)

chemical

56.

Noah is cooking breakfast and decides to fry an egg. Is frying an egg a physical or chemical change?

a)

chemical

b)

physical

57.

Nora noticed that sugar dissolves in her tea

a)

physical Change

b)

chemical change

58.
Which is a chemical change?
a)
freezing fruit juice
b)
slicing a potato
c)
boiling water
d)
copper metal turning green
59.
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
60.

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

61.

What is chemical 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

62.

When you increase the energy by heating a liquid what happens to the motion of the molecules

a)

They slow down

b)

They speed up

c)

Heat doesnt change the motion of the molecules

63.

Which of the following is an indication of chemical change

a)

Melting

b)

Freezing

c)

Burning

d)

Evaporating

64.

What do we call the molecules that are present at the end of a chemical reaction?

a)

Reactants

b)

Products

c)

Ingredients

d)

Atoms

65.

Thermal energy (heat) is released or absorbed during the reaction explains the _________________

a)

Change in color

b)

Change in temperature

c)

Change in gas

66.
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
67.

Is melting butter for popcorn a chemical or physical change?

a)

chemical

b)

physical

68.
Which of the following is NOT an example of a physical change?
a)
crumpled paper
b)
pencil sharpening
c)
shrunken clothing
d)
rust
69.
Freezing Juice?
a)
Physical Change
b)
Chemical Change
70.
A change where one or more new substances are created.
a)
Physical Change 
b)
Chemical Change 
71.

Change in color is a physical change.

a)

True

b)

False

72.
Fizzing, foaming, and burning are all examples of
a)
Chemical change
b)
Physical change
73.

Rust on an iron bar is an example of chemical change.

a)

True

b)

False

74.

When you break a cracker into pieces it is a...

a)

Chemical change

b)

Physical change

75.
Photosynthesis is an example of a
a)
physical change
b)
chemical change
76.
Dissolving sugar in water is an example of a 
a)
physical change
b)
chemical change
77.
Digesting your food is an example of 
a)
chemical change
b)
physical change
78.

The melting of wax is an example of a

a)

chemical change

b)

physical change

79.

Cutting a log in to small pieces is a chemical change.

a)

true

b)

false

80.
Which is an example of a chemical reaction?
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