Matter And Mixtures

Question 1

Matter

Answer 1

Anything that occupies space and has mass

Question 2

Mass

Answer 2

Is the amount of matter in an object

Question 3

3 states of matter

Answer 3

Solid,liquid.gases

Question 4

Properties of a solid

Answer 4

1. Solids have a definite shape
2. Solids have a definite volume
   3.solids cannot be compressed
   4.solids cannot flow

Question 5

Properties of liquids

Answer 5

1.liquids have no definite shape
2.liquids have a definite volume
3.liquids cannot be compressed
4. Liquids can flow

Question 6

Gases

Answer 6

Gases have no definite shape
Gases have no definite volume
Gases can be compressed
Gases can flow

Question 7

Energy

Answer 7

In Order for a substance to change
(rom a solid to a liquid, or
Pal to à pas) it needs heat eneray
substance changes state it
atent heat. There is no change
to temperature, but the state of the material changes

Question 8

The melting point

Answer 8

Is when both the solid and liquid state exist together (changing from a solid to a liquid).

Question 9

The boiling point

Answer 9

Of a liquid is when evaporation begins to happen throughout the liquid(changing from a liquid to a gas)

Question 10

Condensation

Answer 10

Is the changing of a gas to a liquid

Question 11

Diffusion

Answer 11

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 12

Fourth state of matter plasma

Answer 12

Plasma is the fourth state of mattermlike gas,but can conduct ⚡️

Question 13

Physical change

Answer 13

No change in particles just the particle arrangement and energy , easy to reverse e.g burning a match

Question 14

Chemical change

Answer 14

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

Question 15

Chemical reaction

Answer 15

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

Question 16

Law of conservation of mass

Answer 16

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

Question 17

Mixture

Answer 17

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

Question 18

Four methods of separating mixtures

Answer 18

1. Filtration
2. Evaporation
3. Distilledation
4. Chromatographic

Question 19

Filtration

Answer 19

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

Question 20

Distillation

Answer 20

Used to seperate two liquids with different boilings points such as alcohol (boils at 78 degrees) and water( boils at 100 degrees). Also used to seperate a soluble solid from a liquid ( E.g seawater) to give a pure sample of each.

Question 21

Chromatography

Answer 21

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

Question 22

Mixture

Answer 22

• consists of two or more
  substances mingled together but not
  chemically combined

Question 23

Filtration

Answer 23

-used to separate an
insoluble solid and a liquid

Question 24

Isoluble

Answer 24

-does not dissolve in a
liquid

Question 25

Soluble

Answer 25

-does not dissolve in a
liquid

Question 26

Residue

Answer 26

• the soil left in the filter paper after
  filtration

Question 27

Filtrate

Answer 27

• the clean water that comes after
  filtration

Question 28

Solvent

Answer 28

• the liquid that a solid is dissolved
  into

Question 29

Solute

Answer 29

-the solid that is left behind after filtration

Question 30

Distillate

Answer 30

• clean water at the end of distillation

Question 31

Chromatography

Answer 31

• used to separate mixtures
  of substances that are in a solution e.g. dyes in
  ink

Question 32

Reactant

Answer 32

-chemicals that react together in a
chemical reaction

Question 33

Products

Answer 33

-the substances formed after a
chemical reaction