Matter And Material

Question 1

Give 5 examples of acids

Answer 1

Lemon juice 
Fizzy drink 
Fruit juice 
Pool acid 
Vinegar

Question 2

Give 4 examples of bases

Answer 2

Soap
Bleach
Washing powder
Household cleaners

Question 3

Give 5 examples of neutrals

Answer 3

Water 
Salt 
Sugar 
Cooking oil 
Sugar solution

Question 4

What is a neutral substance

Answer 4

Neutrals substances are neither acids nor bases

Question 5

What is an acid

Answer 5

A substance with a sour taste

Question 6

What is a base

Answer 6

A substance with a bitter taste and a slippery feel

Question 7

Bases have what properties

Answer 7

:They taste bitter
:They feel slippery and soapy on the skin
:Many are dangerous to taste or feel because they are corrosive

Question 8

Properties of acids

Answer 8

:They taste sour
:they feel rough on the skin
:many are dangerous to star or feel because they are corrosive wich m and they can burn or damage your skin and corrosive substances eat away other materials

Question 9

Corrosive

Answer 9

Attacks other materials or substances

Question 10

Alkali

Answer 10

A base that dissolves in water

Question 11

Neutral

Answer 11

A substance that is not an acid or base

Question 12

What can you use to indicate if a substance is an acid or base

Answer 12

Blue litmus paper wich turns wich turns red in acids and red litmus paper wich turns blue in base

Question 13

Dumped waste can be a huge problem post factors we should consider

Answer 13

:We suppose you’d be more carefully with items we purchase
:we should by less plastic and use fewer chemicals
:make compost heaps from organic waste
:we must recycle responsibly

Question 14

Dumbest waste causes huge problems and discuss

Answer 14

Pollution effects our water soil and environment from all the harmful chemicals that are just dumped and water has harmful chemicals from the manufacturing process of ore and that water is just dumped in rivers and pollution destroys our ozone layer and blockage iN sewage and drainage systems wich cause flooding wich make breeding grounds for mosquitos and mosquitoes infect thousands of people with malaria and they also they infect the water and it’s also harmful to humans causing breeding grounds for diseases like cholera and dysentery and landfill sites remain underdeveloped because nobody wants to live there

Question 15

What are problems with plastic

Answer 15

:They are not biodegradable and they survive for hundreds day of years unless burnt
:burning plastics release toxic gases or harmful chemicals
:plastic ends up in our seas and oceans killing our sea life either getting tangled in them or eating them

Question 16

What are the physical properties

Answer 16

Strength,flexibility,melting points ,boiling points,heat conductivity,electrical conductivity

Question 17

What is a physical property

Answer 17

The way In wich a substance or materials behaves

Question 18

What colour is copper

Answer 18

Brown and orange

Question 19

What should we consider when we select materials

Answer 19

Cost and colour and texture

Question 20

3 examples of physical materials

Answer 20

Paper
Plastic sheeting
Fabric

Question 21

What tempretures does rock melt at

Answer 21

700 to 1300 degrees

Question 22

What do boiling and melting points tell us about a material

Answer 22

If they are normally in a gas liquid or solid state

Question 23

What are special features of water

Answer 23

Water is normally a liquid but we also see it and a solid in ice and in a gas state wich is water vapor wich condenses from clouds and water melts at 0 degrees and boils at 100 degrees

Question 24

What tempretures does salt boil and melt at
What tempretures does lead boil and melt at
What tempretures does ethanol boil and melt at

Answer 24

Melts 800 degrees
Boils at 1465
Melts 375
Boils 
Melts 78
Boils

Question 25

What is a mixture

Answer 25

It's a materials wich are made up of two or more substances wich have different physical properties

Question 26

Name mixtures in air

Answer 26

Nitrogeon Oxygen Little carbon dioxide

Question 27

What mixtures make saw water

Answer 27

Salt | Water

Question 28

What mixtures make

Answer 28

Like,cement,sand and water

Question 29

Brass is mixture of what

Answer 29

Copper and zinc

Question 30

Define the term filtration

Answer 30

A method of separating mixtures with using the properties of size

Question 31

Lost the mad storing methods of separation

Answer 31

``` Filtration Sieving Magnet Hand sorting Distillation Chromatography Evaporation ```

Question 32

Wich metals are not attracted by a magnet

Answer 32

They are aluminum and copper

Question 33

How many tastes does your tongue have

Answer 33

Four

Question 34

What does your tongue taste

Answer 34

Bitter Sour Sweet Salty

Question 35

What does corrosive mean

Answer 35

It attacks materials and substances

Question 36

List 5 products made from crude oil

Answer 36

``` Petroleum jelly Paraffin Candles Petrie Tar ```

Question 37

Define chromatography

Answer 37

A method of separating mixtures of dissolved substances like dyes

Question 38

What is a solid Wayne deposit

Answer 38

We're people can drop off builders rubble and garden refuge and recyclable materials and electronic waste

Question 39

Why is it important to recycle

Answer 39

We reduce the amount of rubbish wich ends up pulled on top of more rubbish dumps or buried in landfill sites wich generate methane gas as the rubbish breaks down and we save our natural resources like metals wich are used to make tins and oils wich are made to make plastics

Question 40

Name a greenhouse gas

Answer 40

Carbon dioxide

Question 41

What materials are suitable for recycling

Answer 41

Metals Plastic Glass Paper