Chapter 21 - States Of Matter

Question 0

What’s matter ??

Answer 0

*Matter is anything that takes up space and has mass *

Question 1

What is mass ??

Answer 1

Mass is the amount of matter in an object

Question 2

What are the three states of matter ??

Answer 2

Solid , Liquid , Gas

Question 3

A solid has …

Answer 3

1. Definite Mass
2. Definite Shape
3. Definite Volume
4. Incompressible
5. Does Not Flow

Question 4

A Liquid has …

Answer 4

1. Definite Mass
2. No definite shape
3. Definite volume
4. Incompressible
5. Flows

Question 5

A gas has …

Answer 5

1. Definite Mass
2. No definite shape
3. No definite volume
4. Easily compressed
5. Diffuses into the available space

Question 6

Matter is made up of …

Answer 6

Tiny particles which may be molecules , atoms or ions

Question 7

Solid molecules

Answer 7

The molecules are in a fixed position - they can’t move out of position. Each molecule has enough energy to vibrate , but not enough energy to leave its place .

Question 8

Liquid molecules

Answer 8

The molecules have enough energy to slide and roll over and around each other. They are not fixed on position , but they cannot break away from each other

Question 9

Gas molecules

Answer 9

The molecules have enough energy to deprecate completely from each other and move off in all directions

Question 10

Change of State

Answer 10

Solid (ice) -> melting -> Liquid (water) -> evaporating -> Gas (steam)

Gas (steam) -> condensing -> Liquid (water) -> freezing -> Solid (ice)