Fertilisers U3

Question 1

What three nutrients does a plant need to grow

Answer 1

Nitrogen
Phosphorus
Potassium

Question 2

What is nitrogen used for

Answer 2

Needed for plant protein to make strong stems and healthy leaves

Question 3

What is phosphorus used for

Answer 3

Helping new growth in roots and buds

Question 4

What is potassium used for

Answer 4

Resists frost and diseases

Question 5

What are the two types of fertilisers

Answer 5

Natural and synthetic

Question 6

Three examples of natural fertilisers

Answer 6

Rotten plant materials
Dead animals
Animal waste/manure

Question 7

Something about natural fertilisers

Answer 7

They don’t produce harmful chemicals when produced but the content of these essentials are not known

Question 8

What are synthetic fertiliser

Answer 8

Use man made chemicals to replace nutrients

Question 9

Why do fertilisers need to be soluble

Answer 9

So the elements can be dissolved in water and be taken up by the plants roots

Question 10

What are the two processes called

Answer 10

Haber
Ostwald

Question 11

What does the haber process produce

Answer 11

Ammonia

Question 12

What does the ostwald process produce

Answer 12

Nitric acid

Question 13

What are 4 properties of ammonia

Answer 13

Invisible gas
Pungent smell
Very soluble in water
Alkaline gas

Question 14

What catalyst is used to produce ammonia

Answer 14

An iron catalyst

Question 15

What three things are used to make nitric acid

Answer 15

Ammonia
Oxygen
Water

Question 16

What catalyst is used to make nitric acid

Answer 16

Platinum