Important Questions for Class 8 Science Chapter 3 Health: The Ultimate Treasure

Preparing from important questions is one of the best ways to revise a chapter before exams. These Important Questions for Class 8 Science Chapter 3 cover the major concepts from Health: The Ultimate Treasure, including health, communicable and non-communicable diseases, nutrition, immunity, vaccination, sanitation, microorganisms, and preventive healthcare. 

The questions are designed to help students strengthen their understanding and practice important exam-oriented topics.

Health: The Ultimate Treasure Important Questions

Explore key concepts covering physical and mental well-being, disease transmission, and nutritional health. These fundamental topics highlight why maintaining good health is essential for overall life quality.

1. Health is a state of

(A) Only physical fitness

(B) Only mental fitness 

(C) Physical, mental and social well-being 

(D) Absence of diseases

2. Which of the following is a communicable disease?

(A) Diabetes 

(B) Cancer 

(C) Malaria 

(D) Scurvy

3. Which of the following statements is true about vaccination?

(A) It weakens the immune system 

(B) It helps to build resistance against diseases 

(C) It spreads diseases 

(D) It prevents body growth

4. Deficiency of iodine causes ________.

(A) Rickets (B) Scurvy (C) Goitre (D) Anaemia

5. Which nutrient helps in tissue repair?

(A) Carbohydrate (B) Fat (C) Protein (D) Vitamin

6. Assertion (A): Proper sanitation helps in preventing diseases.

Reason (R): It prevents the breeding of disease-carrying insects.

(A) Both A and R are true and R is the correct explanation of A. (B) Both A and R are true but R is not the correct explanation of A. (C) A is true but R is false. (D) Both A and R are false.

7. Match the following:

(A) a–ii, b–iii, c–i

 (B) a–iii, b–ii, c–i 

(C) a–ii, b–i, c–iii 

(D) a–i, b–ii, c–iii

8. The organism that carries disease-causing microbes from one person to another is called a ________.

(A) Pathogen 

(B) Host 

(C) Vector 

(D) Carrier

9. Name two vaccines and the diseases they prevent.

10. State two differences between infectious and non-infectious diseases.

11. What is the role of a balanced diet in maintaining health?

12. Define immunity. Name the two types of immunity.

13. Explain briefly the role of public cleanliness in controlling diseases.

14. Write a short note on balanced diet and lifestyle diseases.

15. Fill in the Blanks 

a) ________ are disease-causing microorganisms. b) The deficiency of ________ causes anaemia. c) ________ is spread by female Anopheles mosquito. d) ________ helps the body to fight infections naturally. e) ________ and ________ are two main types of diseases based on their mode of spread. f) A person suffering from a disease who spreads infection to others is called a ________.

16. State True/False with Explanation 

State whether the following are True or False. Give reasons. (A) All bacteria are harmful. (B) Exercise helps to maintain health. (C) Typhoid is caused by a virus. (D) Vaccination cures diseases.

17. During a school demonstration, students test drinking water samples. The teacher advises boiling the water before use.

(a) Why should water be boiled before drinking? (b) What are water-borne diseases? (c) Name two common water-borne diseases. (d) Mention any two preventive measures to avoid such diseases.

18. Your teacher shows an activity where two slices of bread are kept one dry and one moist for three days. The moist slice grows mould.

(a) What does this show? (b) What are moulds? (c) What can you conclude about microorganisms from this activity?

19. What is the main significance of the chapter "Health: The Ultimate Treasure"? Explain by highlighting the importance of health, hygiene, nutrition, and preventive care in our daily lives.

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