states of matter

Question 1

What shape does a solid have?

Answer 1

Fixed shape

Question 2

What shape does a liquid have?

Answer 2

Matches the shape of their container from the bottom up.

Question 3

What shape does a gas have?

Answer 3

Spreads out to match the shape of their whole container.

Question 4

Can a solid be compressed?

Answer 4

Can’t be compressed.

Question 5

Can a liquid be compressed?

Answer 5

Can’t be compressed significantly.

Question 6

Can a gas be compressed?

Answer 6

Can be compressed.

Question 7

Do solids have a fixed volume?

Answer 7

Yes.

Question 8

Do liquids have a fixed volume?

Answer 8

Yes.

Question 9

Do gases have a fixed volume?

Answer 9

No, they match the volume of their container.

Question 10

Can solids flow?

Answer 10

Don’t flow.

Question 11

Can liquids flow?

Answer 11

Flow easily.

Question 12

Can gases flow?

Answer 12

Diffuse

(Spread out until equally distributed throughout a container)

Question 13

State three points of the particle model.

Answer 13

• All matter is made up of tiny particles.
• Particles are represented by small, solid spheres.
• Three states of matter have different arrangements of particles.

Question 14

State three points of the particle model’s limitations.

Answer 14

• Particles have forces of attraction between them that cannot be shown using this model.
• Particles can be different shapes depending on the substance.
• Particles are not solid; much of the particles are empty space.

Question 15

Describe the motion of particles in a solid.

Answer 15

Particles only vibrate around a fixed point, they cannot move.

Question 16

Describe the motion of particles in a liquid.

Answer 16

Particles can flow over each other but still remain close together.

Question 17

Describe the motion of particles in a gas.

Answer 17

Particles can move freely in a container.

Question 18

solid → gas is…

Answer 18

subliming

Question 19

solid → liquid is…

Answer 19

melting

Question 20

liquid → gas is…

Answer 20

boiling

Question 21

gas → liquid is…

Answer 21

condensing

Question 22

liquid → solid is…

Answer 22

freezing

Question 23

gas → solid is…

Answer 23

subliming (or deposition)

Question 24

solid → gas
energy is..
[provided or removed]

Answer 24

Provided

Question 25

solid → liquid energy is… [provided or removed]

Answer 25

Provided

Question 26

liquid → gas energy is… [provided or removed]

Answer 26

Provided

Question 27

gas → liquid energy is… [provided or removed]

Answer 27

Removed

Question 28

liquid → solid energy is… [provided or removed]

Answer 28

Removed

Question 29

gas → solid energy is… [provided or removed]

Answer 29

Removed

Question 30

The temperature at which a substance turns from a **solid** to a **liquid** is called

Answer 30

…the melting point

Question 31

The temperature at which a substance turns from a **liquid** to a **solid** is called

Answer 31

…the freezing point

Question 32

The temperature at which a substance turns from a **liquid** to a **gas** is called

Answer 32

…the boiling point

Question 33

The temperature at which a substance turns from a **gas** to a **liquid** is called

Answer 33

…the condensing point

Question 34

Melting point = […] point

Answer 34

MELTING POINT = **FREEZING** POINT

Question 35

Boiling point = […] point

Answer 35

BOILING POINT = **CONDENSING** POINT

Question 36

Describe the difference between evaporation and boiling. ***[evaporation]***

Answer 36

- A substance can evaporate at **any** temperature whilst it is a *liquid*. - Evaporation can only take place at the **surface** of a *liquid*.

Question 37

Describe the difference between evaporation and boiling. ***[boiling]***

Answer 37

- A substance can only boil at **one** temperature; the *boiling point* of that substance. - Boiling takes place **throughout** the *liquid*.

Question 38

Between particles there are [_o__es _f a__ra___on]

Answer 38

Between particles there are **forces of attraction**.

Question 39

The **stronger** the forces between the particles, the **more energy** needed to change the state of the substance. This means that the melting and boling points […]

Answer 39

…will be **higher**.

Question 40

The **weaker** the forces between the particles, the **less energy** needed to change the state of the substance. This means that the melting and boiling points […]

Answer 40

…will be **lower**.

Question 41

Above its boiling point a substance is […]

Answer 41

**gas**

Question 42

Between its melting & boiling points a substance is […]

Answer 42

**liquid**

Question 43

Below its melting point a substance is […]

Answer 43

**solid**

Question 44

What is all matter made up of?

Answer 44

Particles.