Quiz about Chemical & Physical Changes

Question 1

Iron rusts.

Accepted Answer

Chemical change

Answer

Physical Change

Question 2

Milk Sours

Accepted Answer

Chemical Change

Answer

Physical Change

Question 3

A tire is inflated with air.

Accepted Answer

Physical Change

Answer

Chemical Change

Question 4

Food is digested in the stomach

Accepted Answer

Chemical Change

Answer

Physical Change

Question 5

Which of the following is a Physical Property

Accepted Answer

Malleability

Answer

Toxicity

Answer

Flammability

Answer

Reactivity

Question 6

Is freezing juice a physical or chemical change?

Accepted Answer

Physical Change

Answer

Chemical Change

Question 7

Any change in the state of matter of a substance is a...

Accepted Answer

Physical Change

Answer

Chemical Change

Question 8

Evidence of a physical change.

Accepted Answer

Shape Change

Answer

New substance

Answer

Light produced

Answer

Gas released.

Question 9

Which of the following are examples of a Chemical Change?

Accepted Answer

Iron Rusting

Accepted Answer

Gas Burning

Accepted Answer

Burning Wood

Answer

Breaking a glass

Answer

Boiling water

Question 10

What is a chemical change?

Accepted Answer

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

Answer

Forming a new substance

Answer

When two or more substances combine to make a greater one

Answer

Combing substances

Question 11

Flammability

Accepted Answer

Chemical property

Answer

Physical property

Question 12

Bitter taste

Accepted Answer

Physical property

Answer

Chemical property

Question 13

Melting point

Accepted Answer

Physical property

Answer

Chemical property

Question 14

Boiling point

Accepted Answer

Physical property

Answer

Chemical property

Question 15

Red color

Accepted Answer

Physical property

Answer

Chemical property

Question 16

A green powder is heated & a gas is given off while it turns to a black solid. This describes

Accepted Answer

Chemical Change

Answer

Physical Change

Answer

Change in State

Answer

Change in Temperature

Question 17

Which of the following could indicate that a chemical change took place?

Accepted Answer

All are correct

Answer

Change in color

Answer

Production of Energy

Answer

Formation of Gas

Question 18

The formation of a solid when two liquids combine is called?

Accepted Answer

Precipitate

Answer

Solidification

Answer

Freezing

Answer

Solubility

Question 19

What does a chemical change result in?

Accepted Answer

A change in the way atoms are bonded to each other.

Answer

A change in state of the substance (ex. liquid to solid)

Answer

A change in texture of the substance.

Answer

A change in the appearance of the substance.

Question 20

Which type of change is most often easily reversed?

Accepted Answer

Physical

Answer

Chemical

Answer

Both a physical and chemical change.

Answer

Neither a physical or chemical change.

Question 21

Alex saw a rusty old car in an abandoned lot. Because he had recently read about chemical reactions, he began to wonder how the rust formed. What happened to cause the rust on the steel car?

Accepted Answer

Oxygen in the air chemically combined with the iron in the steel to form rust.

Answer

A physical change took place in the steel of the car to form rust.

Answer

Oxygen in the air reacted with the paint on the car and formed rust.

Answer

A decomposition chemical reaction took place when the iron in the steel mixed with oxygen to form rust.

Question 22

Identify what type of change happening in the picture below...

Accepted Answer

Physical Change

Answer

Chemical Change

Answer

Endothermic Reaction

Answer

Exothermic Reaction

Question 23

Identify what type of change happening in the picture below...

Accepted Answer

Chemical Change

Answer

Physical Change

Answer

Endothermic Reaction

Answer

Exothermic Reaction

Question 24

Identify what type of change happening in the picture below...

Accepted Answer

Chemical Reaction

Answer

Physical Change

Answer

Change in State

Answer

Change in appearance only

Question 25

Will made toast and buttered it, but then he left the butter out on the warm stove. What kind of change would most likely take place with the butter?

Accepted Answer

Physical

Answer

Chemical

Answer

Liquid

Answer

Solid

Question 26

If the chemical properties of a substance remain unchanged & the appearance or shape of an substance changes it is a...

Accepted Answer

Physical Change

Answer

Chemical Change

Answer

Both a physical and chemical change.

Answer

Neither a physical or chemical change.

Question 27

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

Accepted Answer

A glass falling and shattering on the floor.

Answer

Baking a birthday cake.

Answer

Burning a piece of paper.

Answer

Baking soda and vinegar mixing together.

Question 28

Which is not a clue that could indicate a chemical change has occurred?

Accepted Answer

Change in shape

Answer

Change in color

Answer

Release of energy

Answer

Formation of an odor

Question 29

During Chemical Reactions, the new substances created are called?

Accepted Answer

Products

Answer

Precipitate

Answer

Corrosion

Answer

Reactants

Question 30

During Chemical Reactions, the substances that are used are called?

Accepted Answer

Reactants

Answer

Precipitate

Answer

Corrosion

Answer

Products

Question 31

Which of these examples is a physical change?

Accepted Answer

Option C is correct

Answer

A.

Answer

B.

Answer

D.

Question 32

Sugar dissolves in warm water

Accepted Answer

Physical change

Answer

Chemical Change

Question 33

8. Water boils at 100 degrees Celsius

Accepted Answer

Physical Change

Answer

Chemical Change

Question 34

Which of the following is a Chemical Property?

Accepted Answer

Reactivity

Answer

Density

Answer

Color

Answer

Boiling Point

Question 35

Burning wood is an example of a...

Accepted Answer

Chemical Change

Answer

Physical Change

Question 36

What does the atomic number tell us about an atom?

Accepted Answer

The number of protons

Answer

The number of neutrons

Answer

The number of electrons

Answer

The atomic mass

Question 37

How many oxygen atoms are in this equation?

Accepted Answer

3

Answer

1

Answer

2

Answer

4

Question 38

Is the mold growing on cheese a physical or chemical change?

Accepted Answer

Chemical

Answer

Physical

Question 39

Bubbles form when two or more substances are combined...

Accepted Answer

Chemical change

Answer

Physical change

Question 40

What happens to atoms in a chemical reaction?

Accepted Answer

They rearrange

Answer

They remain unchanged

Answer

They are destroyed

Answer

They are created

Question 41

When baking cookies, Sophie notices a delicious smell. What type of change does this indicate?

Accepted Answer

Chemical

Answer

Physical

Answer

Mechanical

Answer

Electrical

Chemical & Physical Changes

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