Chemical vs. Physical - Properties and Changes

Question 1

What type of property is red color?

Answer 1

Physical

Red color is a physical property.

Question 2

What type of property is density?

Answer 2

Physical

Density is a physical property.

Question 3

What type of property is the ability to burn?

Answer 3

Chemical

The ability to burn is a chemical property.

Question 4

What type of property is the ability to dissolve?

Answer 4

Physical

The ability to dissolve is a physical property.

Question 5

What type of property is the ability to react with vinegar to form carbon dioxide?

Answer 5

Chemical

The ability to react with vinegar is a chemical property.

Question 6

What type of property is bitter taste?

Answer 6

Physical

Bitter taste is a physical property.

Question 7

What type of property is melting point?

Answer 7

Physical

Melting point is a physical property.

Question 8

What type of property is the ability to react with water to form a gas?

Answer 8

Chemical

The ability to react with water is a chemical property.

Question 9

What type of property is the ability to react with a base to form water?

Answer 9

Chemical

The ability to react with a base is a chemical property.

Question 10

What type of property is hardness?

Answer 10

Physical

Hardness is a physical property.

Question 11

What type of property is boiling point?

Answer 11

Physical

Boiling point is a physical property.

Question 12

What type of property is the ability to rust?

Answer 12

Chemical

The ability to rust is a chemical property.

Question 13

What type of change is sodium chloride dissolving in water?

Answer 13

Physical

Dissolving is a physical change.

Question 14

What type of change is hydrochloric acid reacting with sodium hydroxide to form salt and water?

Answer 14

Chemical

This reaction is a chemical change.

Question 15

What type of change is a pellet of sodium being sliced in two?

Answer 15

Physical

Slicing is a physical change.

Question 16

What type of change is water being heated and changed to steam?

Answer 16

Physical. Even though it has a different name, it’s still water.

Heating water to steam is a physical change.

Question 17

What type of change is pancakes cooking?

Answer 17

Chemical

Cooking causes chemical changes. You can tell by the new color and smell.

Question 18

What type of change is silver tarnishing?

Answer 18

Chemical

Tarnishing is a chemical change.

Question 19

What type of change is ice melting?

Answer 19

Physical

Melting ice is a physical change.

Question 20

What type of change is milk turning sour?

Answer 20

Chemical

Sour milk is a chemical change.

Question 21

What type of change occurs when cabbage juice indicator turns pink?

Answer 21

Chemical

Color change indicates a chemical change.

Question 22

What type of change occurs when two substances combine to form a mixture?

Answer 22

Physical

Forming a mixture is a physical change.

Question 23

What type of change occurs when two substances combine to form a solution?

Answer 23

Physical

Forming a solution is a physical change.

Question 24

Is a change in color evidence of a chemical change?

Answer 24

Yes. Color itself is a physical property, but a CHANGE in color is the result of a new substance being made by a chemical change.

Question 25

Is a change in shape evidence of a chemical change?

Answer 25

No, it is a physical change. No new substance is made.

Question 26

Is a new smell evidence of a chemical change?

Answer 26

Yes. Smell itself is a physical property, but a CHANGE in smell is the result of a new substance being made by a chemical change. (Think of something cooking or burning.)

Question 27

Is a new taste evidence of a chemical change?

Answer 27

Yes. Taste itself is a physical property, but a CHANGE in taste is the result of a new substance being made by a chemical change. (Think of milk souring.)

Question 28

Is a change in temperature evidence of a chemical change?

Answer 28

Yes. Chemical changes can release heat or make things colder.

Question 29

Is the creation of a gas (bubbles) evidence of a chemical change?

Answer 29

Yes. Chemical changes can create gas. (Think of carbon dioxide bubbles forming when vinegar mixes with baking soda.)

Question 30

Is the creation of light or sound evidence of a chemical change?

Answer 30

Yes. Chemical changes may release energy in the form of light or sound. (Think of fireworks exploding.)