C10-Using Resources

Question 1

What do we need resources for

Answer 1

Warmth
Shelter
Food
Transport

Question 2

What do we supplement natural resources from

Answer 2

Agriculture

Question 3

What is sustainability

Answer 3

Using natural resources in a way they does not compromise future generations ability to do the same

Question 4

What is potable/safe water

Answer 4

Water that has low levels of dissolved salts and microbes that is safe to drink

Question 5

How can water be sterilised

Answer 5

Using chlorine,ozone or UV

Question 6

What is Desalination and state a disadvantage

Answer 6

Removal of salt by distillation or reverse osmosis so it is safe to drink

Cons— requires a lot of energy

Question 7

How is waste water made

Answer 7

From using the toilet

Industrial processes

Question 8

How can pure metals be obtained

Answer 8

From electrolysis or displacement reaction

Question 9

What is phytomining

Answer 9

Plants absorb copper ions into their roots

Burn, then obtain copper from the ash

Question 10

What is bioleaching

Answer 10

Bacterial produce LEACHATE solutions that contain copper ions that can be extracted

Question 11

Why is a life cycle assessment done

Answer 11

Carried out to predict the impact of a new product on the environment

Question 12

What is considered in a life cycle assessment

Answer 12

Extraction and processing of raw materials

Manufacturing and packaging

Use over its lifetime

Disposal

Transportation

Question 13

Why does iron rust

Answer 13

Due to its reaction with oxygen

Question 14

Why does copper corrode ?

Answer 14

When it reacts with oxygen to make Copper Oxide

Question 15

What colour is aluminium oxide

Answer 15

White

Question 16

What can we do to make sure metals don’t corrode

Answer 16

Use sacrificial metals

Question 17

Covering another metal in zinc is called…..

Answer 17

Galvanising

Question 18

What are alloys

Answer 18

Mixtures of different metals to fulfil a specific need

Question 19

What is bronze made up of

Answer 19

Copper and tin

Question 20

What is brass made up of

Answer 20

Copper and zinc

Question 21

What is steel made up of

Answer 21

Iron and carbon

Question 22

What is STAINLESS steel made up of

Answer 22

Steel + Chromium/nickel

Question 23

What is soda lime glass made up of

Answer 23

Heating sand , sodium carbonate and limestone

Question 24

How do you make Borosilicate glass

Answer 24

Sand and boron trioxide

Question 25

What are composites

Answer 25

Combination of two materials with one binding the other usually resulting in strong and light materials

Question 26

What does HDPE mean

Answer 26

High Density Polythene

Question 27

What does LDPE mean

Answer 27

Low density Polyethene

Question 28

What are thermosofting polymers

Answer 28

do not Melt when heated

Question 29

What are thermosetting polymers

Answer 29

Do not react to heat

Question 30

What does the Haber Process make

Answer 30

Makes ammonia

Question 31

Formula that is for the Haber Process

Answer 31

N^2 + 3H^2 ————>2NH^3

Is a reversible reaction

Question 32

Why do plants need nitrogen

Answer 32

To make protein and other compounds

Question 33

Why do plants need phosphorus ?

Answer 33

Converting sun’s energy into food ,fiver and oil

Question 34

Why do plants need potassium

Answer 34

Helps regulating the opening and closing of the stomata which regulates the exchange of

Water vapour

Oxygen

Carbon Dioxide

Question 35

What is ammonia used to make

Answer 35

Ammonium salts

Question 36

How is potassium chloride and potassium sulphate obtained from

Answer 36

Mining