EASY
Lower Secondary Stage 7
IMPORTANT
Earn 100

There are several stages in the scientific method used by scientists.

Complete the table by writing 1st, 2nd, 3rd or 4th to show the correct order of the stages shown.

Stage of sceintific method Order
Experiment  
Question to be answered   
Results  
Prediction  

 

Important Questions on Microorganisms and Disease

EASY
Lower Secondary Stage 7
IMPORTANT
Cambridge Lower Secondary Science Stage 7 : Workbook>Chapter 2 - Microorganisms and Disease>Exercise 2>Q 6
Pasteurised milk eventually spoils even if the container is not opened. Explain why?
EASY
Lower Secondary Stage 7
IMPORTANT
Cambridge Lower Secondary Science Stage 7 : Workbook>Chapter 2 - Microorganisms and Disease>Exercise 3>Q 1
What is meant by infectious disease?
EASY
Lower Secondary Stage 7
IMPORTANT
Cambridge Lower Secondary Science Stage 7 : Workbook>Chapter 2 - Microorganisms and Disease>Exercise 3>Q 2
Which of the following are symptoms of food poisoning? Tick two boxes.
EASY
Lower Secondary Stage 7
IMPORTANT
Cambridge Lower Secondary Science Stage 7 : Workbook>Chapter 2 - Microorganisms and Disease>Exercise 3>Q 4
Give an example of a disease spread by animals?
EASY
Lower Secondary Stage 7
IMPORTANT
Cambridge Lower Secondary Science Stage 7 : Workbook>Chapter 2 - Microorganisms and Disease>Exercise 3>Q 5

Cholera is a disease. It is spread by bacteria found in water contaminated by faeces(waste) from a person infected with cholera.

Describe two methods of preventing the spread of the bacteria that cause cholera.

EASY
Lower Secondary Stage 7
IMPORTANT
Cambridge Lower Secondary Science Stage 7 : Workbook>Chapter 2 - Microorganisms and Disease>Exercise 3>Q 6
Explain why diseases can easily be spread in a confined space such as bus.
EASY
Lower Secondary Stage 7
IMPORTANT
Cambridge Lower Secondary Science Stage 7 : Workbook>Chapter 2 - Microorganisms and Disease>Exercise 3>Q 8
Explain why a surgeon wears a mask over their nose and mouth when performing surgery.
EASY
Lower Secondary Stage 7
IMPORTANT
Cambridge Lower Secondary Science Stage 7 : Workbook>Chapter 2 - Microorganisms and Disease>Exercise 4>Q 1
Which of the following foods is made using microorganisms? Tick one box.