Matter And Mixtures

Question 1

Matter

Answer 1

Matter is anything that occupies space and has mass

Question 2

Mass

Answer 2

Mass is the amount of matter is in a object

Question 3

3 states of matter

Answer 3

Solids
Liquids
Gases

Question 4

Gases

Answer 4

No definite shape
No definite volume
Can compress
Can flow

Question 5

Properties of solids

Answer 5

Definite shape
Definite volume
Can’t flow
Can’t compress

Question 6

Properties of liquids

Answer 6

No definite shape
Definite volume
Can’t compress
Can flow

Question 7

The melting point

Answer 7

The melting point is when both the solid and liquid state exist together (changing from a solid to a liquid)

Question 8

Boiling point

Answer 8

The boiling point of a liquid is when
evaporation begins to happen throughout the
Liquid (changing from a liquid to a gas)

Question 9

Condensation

Answer 9

Condescension is the changing of a gas to a liquid

Question 10

Heat energy

Answer 10

In order for a substance to change
stale (from a solid to a liquid, or
liquid to a gas) it needs heat energy

Question 11

Latent heat

Answer 11

As a substance changes state, it
nises latent heat. There is no change
to temperature, but the state of the material changes

Question 12

Diffusion

Answer 12

Diffusion is the movement of particles from an
area of high concentration to an area of low
concentration e g spray perfume in one corner
of the room, and it spreads to the rest of the room

Question 13

Plasma four states of matter

Answer 13

Plasma is the fourth state of matter,like gas but can conduct electricity

Question 14

Mixture

Answer 14

A mixture consists of two or more
jubstances mingled together but not
chemically combined e g, sand and
Water

Question 15

The four ways to separate mixtures

Answer 15

1 Filtration
2 Evaporation
3 Distillation
4 Chromatography

Question 16

Physical change

Answer 16

Physical change: no change in particles, just
the particle arrangement and energy, easy to
reverse e.g. mixing water and salt

Question 17

Chemical change

Answer 17

Chemical change: A chemical reaction takes
place and a new substance is formed, very
difficult to reverse e.g. burning a match

Question 18

During a chemical reaction

Answer 18

During a chemical reaction the atoms
rearrange to form a new substance. Might be
seen by colour change, temperature
change, light being emitted or bubbles

Question 19

Law of conservation of mass

Answer 19

Matter can be changed from one form to
another. During physical and chemical
changes, there is no overall change in mass

Question 20

Particle model diagrams

Answer 20

Page 170 of textbook
 Water example done in book, do copper oxide

Question 21

Distillation

Answer 21

Used to separate two liquids
with different boiling points
such as alcohol (boils at 78o) and
water (boils at 100 o). Also used to separate a soluble solid from a
liquid (e.g. seawater) to give a
pure sample of each.
 p178

Question 22

Evaporation

Answer 22

Used to separate soluble solids
(dissolve in liquids) from a
solution by evaporating off the
liquid to leave the solids. E.g. salt
water.
 p177

Question 23

Filtration

Answer 23

Used to separate small insoluble
solids (do not dissolve in a liquid)
from a liquid by using filter paper
and a funnel to trap the solids. E.g.
sand and water.
 p177

Question 24

Mixture

Answer 24

A mixture consists of two or more
substances mingled together but not
chemically combined e.g. sand and
water.

Question 25

Four ways to separate mixtures

Answer 25

1. Filtration 2. Evaporation 3. Distillation 4. Chromatography

Question 26

Chromatography

Answer 26

Used to separate a mixture of dissolved substances in a solution. E.g. the different colours in a black marker.