Quiz about Physical and Chemical Changes

Question 1

Which action would cause the weight of an object or substance to decrease?

Accepted Answer

Burning it.

Answer

Stirring it.

Answer

Freezing it.

Answer

Dissolving it.

Question 2

separating sand and gravel

Accepted Answer

physical change

Answer

chemical change

Question 3

Freezing juice is an example of a(n) ________

Accepted Answer

physical change

Answer

chemical change

Answer

chemical reaction

Answer

heredity

Question 4

Melting butter

Accepted Answer

Physical

Answer

Chemical

Question 5

Smashing a can

Accepted Answer

Physical

Answer

Chemical

Question 6

freezing chocolate covered bananas

Accepted Answer

physical change

Answer

chemical change

Question 7

Is burning wood a chemical or physical change?

Accepted Answer

chemical

Answer

physical

Question 8

Freezing juice is a

Accepted Answer

Physical Change

Answer

Chemical Change

Question 9

Cutting your hair is a

Accepted Answer

Physical Change

Answer

Chemical Change

Question 10

Melting a chocolate bar is an example of a(n) ______________ .

Accepted Answer

physical change

Answer

chemical change

Answer

photosynthesis

Answer

heredity

Question 11

tire is inflated

Accepted Answer

physical change

Answer

chemical change

Question 12

Question 12.

Accepted Answer

chemical change

Answer

physical change

Question 13

A firework display

Accepted Answer

Chemical

Answer

Physical

Question 14

Which of the following is a correct statement about the investigations?

Accepted Answer

Situations 1 and 3 are physical changes because no new substances are formed.

Answer

All of the situations are examples of physical changes because all of the investigations exhibit changes to the physical properties.

Answer

None of the situations are examples of physical changes because they all involve a color change.

Answer

Situation 2 is a physical change because rust forming is a natural process.

Question 15

Mixing Mentos and Coke

Accepted Answer

Chemical

Answer

Physical

Question 16

A 5th grade student places baking soda in a cup. The student then adds vinegar to the cup. The student collects the data below from the experiment. Based upon the results of the experiment, which statement BEST describes whether the change is a physical or chemical change.

Accepted Answer

The data concludes that a chemical change has occurred because there was formation of bubbles when the materials reacted to each other.

Answer

The data concludes that a physical change has occurred because it had an increased change in temperature, which resulted in the liquid to start bubbling.

Answer

The data concludes that a physical change has occurred because the color of the liquid changed when you mixed two materials.

Answer

The data concludes that a chemical change has occurred because mixing two substances together will always result in a reaction.

Question 17

Chopping food

Accepted Answer

Physical

Answer

Chemical

Question 18

Slicing apples

Accepted Answer

Physical

Answer

Chemical

Question 19

Photosynthesis is an example of a

Accepted Answer

chemical change

Answer

physical change

Question 20

Is hammering wood to build a treehouse a physical or chemical change?

Accepted Answer

physical change

Answer

chemical change

Question 21

This is a change in which matter changes to a different type.

Accepted Answer

Chemical

Answer

Physical

Question 22

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

Accepted Answer

Burning wood

Answer

Melting ice

Answer

Dissolving sugar in water

Answer

Breaking glass

Question 23

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

Accepted Answer

They change their state but not their identity

Answer

They are rearranged to form new substances

Answer

They are destroyed

Answer

They combine with other molecules to form a new compound

Question 24

Which of the following observations indicates a chemical change?

Accepted Answer

A change in color

Answer

A change in state from solid to liquid

Answer

A change in shape

Answer

A change in size

Question 25

When a piece of iron rusts, what type of change is occurring?

Accepted Answer

Chemical change

Answer

Physical change

Answer

Both physical and chemical change

Answer

Neither physical nor chemical change

Physical and Chemical Changes

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