From notes

Question 1

Volume

Answer 1

The space a three dementional object takes up (cm3, m3)

Question 2

Capacity

Answer 2

The amount a container will hold (L, ml)

Question 3

Mass

Answer 3

The amount of matter in an object (kg, g)

Question 4

Matter

Answer 4

Anything that occupies space. (Has mass and volume)

Question 5

Matter can be classified as…

Answer 5

A pure substance or a mixture

Question 6

Pure substance

Answer 6

Has only one kind of matter in it

Question 7

Mixture

Answer 7

Is a combination of different substances

Question 8

Pure substances can be further separated into to categories, they are…

Answer 8

Elements and compounds

Question 9

Element

Answer 9

A pure substance found in the periodic table

Question 10

Compound

Answer 10

When two or more objects chemically combine.

Question 11

Mixtures can be either…

Answer 11

Mechanical(heterogeneous) or solutions(homogeneous)

Question 12

Mechanical mixtures

Answer 12

You can see the different parts

Question 13

Solution

Answer 13

You cannot see the different parts

Question 14

Solute

Answer 14

The substance that dissolves

Question 15

Solvent

Answer 15

The substance that does the dissolving

Question 16

One method of deciding if a liquid is a pure substance or a solution

Answer 16

Chromatography

Question 17

Physically moving parts into different area depending on their size colour etc

Answer 17

Sorting

Question 18

Using _____ to separate metals from non metals

Answer 18

Magnets

Question 19

Using _________ to sort substances from each other using size

Answer 19

Filtration

Question 20

Separating wheat kernels from chaff by throwing them in the air

Answer 20

Winnowing

Question 21

If one substance will float and the other won’t they will separate in water

Answer 21

Centrifuge

Question 22

If one substance will dissolve and the other will not they can be separated in a solute

Answer 22

Distillate

Question 23

Evaporation

Answer 23

The process of changing state form liquid to gas

Question 24

The particle theory is…

Answer 24

A model used to describe the interactions between substances

Question 25

1st part of the particle theory

Answer 25

All matter is made of tiny particles. Different substances have different particles.

Question 26

2nd part of the particle theory

Answer 26

The tiny particles of matter are always moving and vibrating. For solids this movement is wiggling in place, liquids slide around all over each other, and gases move as far as they can

Question 27

3rd part of the particle theory

Answer 27

The particles in matter are attracted or bonded to each other

Question 28

4th part of the particle theory

Answer 28

The particles have space between them.

Question 29

Dissolving

Answer 29

Mixing a solute with a solvent forming a solution

Question 30

In a solution...

Answer 30

The solvent particles are attracted to and cling to particles of the solute

Question 31

Stirring

Answer 31

When the solvent particles bump into the solute particles, they break the attractive forces between solute particles.

Question 32

Surface area

Answer 32

Small solute particles dissolve faster than large solute particles because there is more surface area particles for the solvent to bump into

Question 33

Temperature increases

Answer 33

Make particle move faster

Question 34

Concentrated solution

Answer 34

Any solution that contains large amounts of solute in a solvent

Question 35

Dilute solution

Answer 35

Any solution that contains a small amount of of solute in a solvent

Question 36

Concentration

Answer 36

The amount of solute dissolved in a solution

Question 37

Saturated solution

Answer 37

A solution in which no more solute can dissolve

Question 38

Unsaturated solution

Answer 38

A solution in which there is still room for more solute to dissolve

Question 39

Solubility

Answer 39

The maximum amount of solute that can dissolve in a amount of solvent

Question 40

Solubility depends on on three factors

Answer 40

Temperature, the type of solvent, the type of solute

Question 41

Insoluble

Answer 41

Solute particles that will not bind with some solvent particles

Question 42

Supersaturated solution

Answer 42

Is a solution that contains more solute than it normally would

Question 43

Three raw materials used to make glass

Answer 43

Sand 75%, carbonates 15%, lime from limestone 10%

Question 44

Detergents

Answer 44

Are substances that clean away dirt. They usually dissolve in water

Question 45

Soap

Answer 45

A type of detergent

Question 46

Surfactants

Answer 46

Particles that attach themselves to dirt to and oil and pull them into the water so that they can be washed away

Question 47

Phosphates

Answer 47

Used to be used in detergents but aren’t anymore because they are hazardous to the environment

Question 48

Biodegradable

Answer 48

Products able to be broken down by living things

Question 49

4 types of waste

Answer 49

Industrial, agricultural, sewage and air pollution