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

Solids liquids an gases

Question 4

Properties of solids

Answer 4

Solids have a definite shape have a definite volume cannot be compressed cannot flow

Question 5

Gases

Answer 5

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

Question 6

Heat energy

Answer 6

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

Question 7

Latent heat

Answer 7

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

Question 8

Melting point

Answer 8

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

Question 9

Boiling point

Answer 9

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

Question 10

Condensation

Answer 10

Condensation is the changing of a gas to a liquid

Question 11

Diffusion

Answer 11

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 12

Plasma

Answer 12

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

Question 13

Mixture

Answer 13

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

Question 14

There are four methods of separating mixtures

Answer 14

Filtration
Evaporation
Distillation
Chromatography

Question 15

Evaporation

Answer 15

Used to separate soluble solids
(dissolve in liquids) trom a solution by evaporating off the liquid to leave the solids. E.g salt Water.