Quiz about Physical vs Chemical Change

Question 1

A copper penny turning greenish after a few years is an example of ...

Accepted Answer

Chemical Change

Answer

Physical Change

Question 2

A change in which NEW substances are formed.

Accepted Answer

Chemical change

Answer

Physical change

Answer

Casual change

Answer

Formal change

Question 3

Which of the following is NOT an example of chemical change?

Accepted Answer

breaking a pencil

Answer

sour milk

Answer

burning wood

Answer

rust

Question 4

Which of the following is NOT an example of a physical change?

Accepted Answer

sour milk

Answer

crumpled paper

Answer

pencil sharpening

Answer

shrunken clothing

Question 5

Which of the following IS a physical change?

Accepted Answer

Getting a haircut

Answer

Rusty metal

Answer

sour milk

Answer

A compound

Question 6

Is melting butter for popcorn a chemical or physical change?

Accepted Answer

physical

Answer

chemical

Question 7

Ripping up paper ...

Accepted Answer

Physical Change

Answer

Chemical Change

Question 8

Is a rusting bicycle a chemical or physical change?

Accepted Answer

chemcial

Answer

physical

Question 9

A change in phase ...

Accepted Answer

Physical Change

Answer

Chemical Change

Question 10

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

Accepted Answer

Chemical Change

Answer

Physical Change

Question 11

Change in size ...

Accepted Answer

Physical Change

Answer

Chemical Change

Question 12

An explosion occurs ...

Accepted Answer

Chemical Change

Answer

Physical Change

Question 13

To go back to the substances original states is not possible or you would need to use chemicals.

Accepted Answer

Chemical

Answer

Physical

Question 14

Causes a change in temperature ...

Accepted Answer

Chemical Reaction

Answer

Physical Reaction

Question 15

Causes a change in odor ...

Accepted Answer

Chemical Reaction

Answer

Physical Reaction

Question 16

Evidence of Chemical Change.

Accepted Answer

New Substance

Answer

Size change

Answer

State change

Answer

Mixture

Question 17

Evidence of a physical change.

Accepted Answer

Shape Change

Answer

New substance

Answer

Light produced

Answer

Gas released.

Question 18

Physical properties are

Accepted Answer

properties that can be observed without changing the identity of the substance

Answer

properties that describe how a substance changes into a completely different substance

Question 19

True or False: a physical change may produce a new substance.

Accepted Answer

False

Answer

True

Question 20

On a camping trip, Mrs. Benavides roasts a marshmallow in the campfire. She notices that the roasted marshmallow smells and tastes differently than the uncooked marshmallows. What change has taken place, and how does Mrs. Benavides know?

Accepted Answer

a chemical change because the marshmallow changed in taste, color and smell

Answer

no change because the marshmallow is not a new substance

Answer

only a physical change because the marshmallow changed in size

Answer

a chemical change because the marshmallow only changed in pH level

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