Chapter 8 · ICSE Class 8 Biology (Selina Concise)

Diseases and First Aid

Learn about common diseases, how they spread, and basic first aid techniques for emergencies.

🩹 Chapter 8

Communicable and non-communicable diseases compared Communicable diseases like the common cold spread from person to person, while non-communicable diseases like diabetes do not spread and are often long-term conditions Communicable spreads person to person e.g. common cold Non-Communicable does not spread e.g. diabetes
8.1

Communicable and Non-Communicable Diseases

Communicable diseases spread from person to person (like flu). Non-communicable diseases don't spread between people (like diabetes).

1

Is the common cold a communicable or non-communicable disease?

Communicable, since it spreads from person to person

2

Is diabetes a communicable or non-communicable disease?

Non-communicable

8.2

Basic First Aid

First aid is immediate care given to an injured or ill person before professional medical help arrives.

1

What is the first step in first aid for a minor cut?

Clean the wound and apply pressure to stop the bleeding, then cover with a clean bandage

2

Why is it important to know basic first aid?

It can help prevent a minor injury from worsening, and can even save a life in serious emergencies before medical help arrives

Practice

Exercises

1. What is a communicable disease?

2. Give an example of a non-communicable disease.

3. What is first aid?

4. What is the first step for treating a minor cut?

5. Name one way communicable diseases can spread.

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