Unit 1 (Methods and Matter)

Question 1

Anything that occupies space and has mass

Answer 1

Matter

Question 2

A form of matter that has a definite composition and distinct properties

Answer 2

Substance

Question 3

A characteristic that can be used to describe a substance

Answer 3

Property

Question 4

What is Vaporization?

Answer 4

The process in which liquid turns into gas

Question 5

What is Condensation?

Answer 5

The process in which gas turns into liquid

Question 6

What is Sublimation?

Answer 6

The process in which a solid turns into gas

Question 7

What is Deposition?

Answer 7

The process in which gas turns into solid

Question 8

What is Freezing?

Answer 8

The process in which liquid turns into solid

Question 9

What is Melting?

Answer 9

The process in which solid turns into liquid

Question 10

Made up of only one component and it’s composition is invariant (every sample has the same composition)

Answer 10

Pure Substance

Question 11

A substance composed of two or more components in proportions that can vary from one sample to another

Answer 11

Mixture

Question 12

A substance that cannot be chemically broken down into simpler substances

Answer 12

Element

Question 13

A substance that is composed of two or more elements in fixed definite proportions

Answer 13

Compound

Question 14

A mixture where the composition varies from one region of the sample to another

Answer 14

Heterogeneous

Question 15

A mixture where all portions of the sample have the same composition and properties

Answer 15

Homogeneous

Question 16

A transformation that alters the composition of a substance

Answer 16

Chemical Change

Question 17

Properties that, in order to be observed, require that the composition of matter be changed

Answer 17

Chemical Properties

Question 18

During a physical or chemical change, the total amount of matter does not change.

Answer 18

Law of Conservation of Mass