Practice Worksheets for Class 8 Science: Chapter 03 Health The Ultimate Treasure
Explore reliable practice materials for Chapter 03 Health The Ultimate Treasure tailored for Class 8 learners. Utilizing these Science worksheets ensures thorough preparation and strengthens problem-solving speed for upcoming school assessments.
Practice Chapter 03 Health The Ultimate Treasure Worksheets for Class 8 Science
Access the complete worksheet PDF for Chapter 03 Health The Ultimate Treasure below. Regular practice with these targeted questions builds familiarity with standard exam patterns and helps secure higher marks in final Science evaluations.
A. Check Point
1. Mention the causative agents: influenza, measles, malaria, dengue, chikungunya, HIV.
Show answer
Answer: Influenza: influenza virus. Measles: measles virus. Malaria: Plasmodium (a protozoan). Dengue: dengue virus. Chikungunya: CHIKV virus. HIV: human immunodeficiency virus (a retrovirus).
Teacher's Note: Most of these are viral; malaria is protozoan.
2. State True or False: 1. The immune system makes proteins called antigens which react with germs. 2. A vaccine is given by injection or orally. 3. All medicines are drugs as they cure infections. 4. Booster doses are given only once. 5. Vaccination and immunisation are the same.
Show answer
Answer: 1. False (the proteins are antibodies; antigens are foreign substances); 2. True; 3. False; 4. False (boosters may be repeated); 5. False (vaccination is giving the vaccine; immunisation is the resulting protection).
Teacher's Note: Antibodies fight antigens.
3. Fill in the blanks: 1. A ____ contains necessary medical items such as antiseptic lotion, band aids, scissors and bandage. 2. If the cut is not deep, it is called ____. 3. ____ are injuries to tissues under the skin. 4. ____ is a state where a person suddenly does not respond to stimuli. 5. The full form of CPR is ____.
Show answer
Answer: 1. first aid box; 2. a superficial cut; 3. Bruises; 4. Unconsciousness (fainting); 5. Cardiopulmonary resuscitation.
Teacher's Note: Write a short, clear answer.
B. Keywords
4. Define: balanced diet, first aid, haemophilia, incubation period.
Show answer
Answer: Balanced diet: food with all nutrients in the right amounts. First aid: the immediate help given to an injured or ill person before a doctor comes. Haemophilia: a hereditary disease in which blood does not clot properly. Incubation period: the time between the entry of germs and the first symptoms.
Teacher's Note: Remember this for your exam.
C. Multiple Choice Questions
(i) Which is NOT a congenital disease? (a) colour blindness (b) haemophilia (c) measles (d) thalassaemia
Show answer
Answer: (c) Measles (it is infectious).
Teacher's Note: Learn this point and write it in your own words.
(ii) An example of droplet infection: (a) measles (b) influenza (c) diphtheria (d) all
Show answer
Answer: (d) All.
Teacher's Note: Use the key term in your answer.
(iii) A disease caused by a virus: (a) rabies (b) chicken pox (c) influenza (d) all
Show answer
Answer: (d) All.
Teacher's Note: Give an example if the question allows.
(iv) The bacterium that causes tuberculosis: (a) Mycobacterium tuberculosis (b) Vibrio cholerae (c) Salmonella typhi (d) Haemophilus pertussis
Show answer
Answer: (a) Mycobacterium tuberculosis.
Teacher's Note: Write a short, clear answer.
(v) Causes of ill health: (a) tobacco (b) alcohol (c) drug addiction (d) all
Show answer
Answer: (d) All.
Teacher's Note: Remember this for your exam.
(vi) Disease caused by Vibrio cholerae: (a) polio (b) malaria (c) cholera (d) typhoid
Show answer
Answer: (c) Cholera.
Teacher's Note: Learn this point and write it in your own words.
(vii) An injury to tissues under the skin is called (a) superficial cut (b) deep cut (c) bruise (d) none
Show answer
Answer: (c) Bruise.
Teacher's Note: Use the key term in your answer.
D. Fill in the Blanks
1. The causative agent of chikungunya is ____. 2. Mosquitoes spread ____ as carriers of protozoan. 3. Common cold, influenza, measles, cholera, typhoid and polio are ____ diseases. 4. AIDS is caused by a retrovirus, also known as ____. 5. Third-degree burns are also called ____. 6. ____ is a state where a person suddenly does not respond to stimuli.
Show answer
Answer: 1. CHIKV virus; 2. malaria; 3. communicable (infectious); 4. HIV; 5. full-thickness burns; 6. Unconsciousness.
Teacher's Note: Give an example if the question allows.
E. True or False
1. Measles is caused by a virus. 2. The vector of dengue is the Aedes mosquito. 3. Tobacco is harmful as it contains nicotine. 4. A vaccine is given by injection and not orally. 5. Ice cubes or ice bags reduce swelling and discoloration.
Show answer
Answer: 1. True; 2. True; 3. True; 4. False (polio vaccine is given orally); 5. True.
Teacher's Note: Write a short, clear answer.
F. Odd One Out and Table
14. Choose the odd one out: 1. influenza, measles, polio, tetanus 2. cholera, typhoid, rabies, leprosy 3. tapeworm, pinworm, roundworm, Plasmodium 4. dengue, cholera, leprosy, tetanus
Show answer
Answer: 1. Tetanus (bacterial; the others are viral). 2. Rabies (viral; the others are bacterial). 3. Plasmodium (a protozoan; the others are worms). 4. Dengue (viral; the others are bacterial).
Teacher's Note: Remember this for your exam.
15. Complete the table of disease, causative agent and preventive measure.
Show answer
Answer:
| Disease | Causative agent | Preventive measure |
|---|---|---|
| Polio | Virus (poliovirus) | Polio vaccine drops |
| Chikungunya | CHIKV virus | Covering small pools of stagnant water |
| Dengue | Dengue virus | Stopping mosquito breeding, using nets and repellents |
| Plague | Yersinia pestis | Rat management in rural and urban areas |
| Typhoid | Salmonella typhi | Clean water, hygiene and vaccination |
Teacher's Note: Learn this point and write it in your own words.
G. Very Short and Short Answer Questions
1. What does AIDS stand for? 2. Name the disease caused by Plasmodium. 3. Name the viral disease spread by a dog bite. 4. What treatment is given to a snake-bite victim? 5. What does tobacco contain?
Show answer
Answer: 1. Acquired Immuno Deficiency Syndrome. 2. Malaria. 3. Rabies. 4. Anti-venom injection, after keeping the person calm and tying a bandage above the bite. 5. Nicotine, tar and carbon monoxide.
Teacher's Note: Use the key term in your answer.
1. Define disease. Differentiate between congenital and acquired diseases.
Show answer
Answer: A disease is a disorder that affects the normal working of the body. Congenital diseases are present from birth, such as haemophilia. Acquired diseases develop during life, for example from germs, such as measles.
Teacher's Note: Give an example if the question allows.
2. Precautions to avoid AIDS.
Show answer
Answer: Use only sterilised or new needles and syringes, use screened blood for transfusion, avoid unsafe contact and have an infected mother treated, and spread awareness.
Teacher's Note: Write a short, clear answer.
3. What is the vector of malaria?
Show answer
Answer: The female Anopheles mosquito.
Teacher's Note: Remember this for your exam.
4. How is typhoid transmitted?
Show answer
Answer: Through contaminated food and water.
Teacher's Note: Learn this point and write it in your own words.
5. Define vaccine.
Show answer
Answer: A weak or dead form of a germ, or its part, that is given to make the body produce antibodies and give protection against a disease.
Teacher's Note: Use the key term in your answer.
6. Explain: allergy, immunity, vaccination.
Show answer
Answer: Allergy: an over-reaction of the body to a harmless substance such as dust or pollen. Immunity: the body's power to fight disease. Vaccination: giving a vaccine to build immunity.
Teacher's Note: Give an example if the question allows.
7. Symptoms and prevention of dengue.
Show answer
Answer: Symptoms: high fever, severe headache, pain behind the eyes, joint and muscle pain, and rashes. Prevention: stop mosquito breeding by emptying coolers and pots, use nets and repellents, and wear full-sleeved clothes.
Teacher's Note: Write a short, clear answer.
8. Define first aid. What is in a first aid box?
Show answer
Answer: First aid is the immediate help given to an injured person before medical help arrives. A box has antiseptic lotion and cream, band aids, cotton, sterile gauze, scissors, crepe bandage, thermometer, pain-relieving tablets and a pair of tweezers.
Teacher's Note: Remember this for your exam.
H. Long Answer Questions
1. What are communicable diseases? Explain the transmission, symptoms and treatment of influenza, measles, chikungunya and HIV.
Show answer
Answer: Communicable diseases spread from one person to another. Influenza: through air droplets; symptoms: fever, cough, sore throat; treatment: rest, fluids, and a doctor's medicine. Measles: through air droplets; symptoms: fever and red rashes; prevented by the MMR vaccine. Chikungunya: by the Aedes mosquito; symptoms: fever and severe joint pain; treatment: rest and fluids. HIV/AIDS: through infected blood, needles and from mother to child; symptoms: weak immunity and repeated infections; treatment: anti-retroviral therapy.
Teacher's Note: Learn this point and write it in your own words.
2. Explain the term vector. Give the causative agent, symptoms and prevention of dengue and malaria.
Show answer
Answer: A vector is a carrier that transfers a disease-causing organism from one host to another (for example mosquitoes). Dengue: virus; Aedes mosquito; high fever, joint pain, rash; prevent by avoiding stagnant water. Malaria: Plasmodium; female Anopheles; fever with chills; prevent by nets, repellents and spraying insecticides.
Teacher's Note: Use the key term in your answer.
3. Discuss the general methods of preventing diseases.
Show answer
Answer: Keep personal and surrounding hygiene, wash hands, drink safe water, eat clean food, get vaccinated, control vectors, avoid contact with the sick, exercise and have a balanced diet.
Teacher's Note: Give an example if the question allows.
4. What is the difference between vaccination and immunisation? Give an example.
Show answer
Answer: Vaccination is the act of giving a vaccine. Immunisation is the resulting protection of the body against the disease. Example: the polio vaccine given to a child immunises it against polio.
Teacher's Note: Write a short, clear answer.
5. Explain the bad habits that lead to illness.
Show answer
Answer: Smoking and chewing tobacco, drinking alcohol, drug abuse, poor hygiene, junk food, lack of sleep and exercise. They damage the lungs, liver and the brain.
Teacher's Note: Remember this for your exam.
6. What is first aid? How would you give first aid for burns?
Show answer
Answer: First aid is immediate help before medical care. For burns, pour cool running water over the burnt part for at least ten minutes, do not apply butter or ice, cover loosely with a clean cloth or sterile gauze, do not burst blisters, and take the person to a doctor quickly if the burn is severe.
Teacher's Note: Learn this point and write it in your own words.
Free study material for Science
Chapter 03 Health The Ultimate Treasure Practice Sheet and Solutions for Class 8 Science
Chapter 03 Health The Ultimate Treasure Printable Worksheet for Class 8 Science
Explore reliable practice questions for Chapter 03 Health The Ultimate Treasure tailored for Class 8 Science learners. Use these structured worksheets to evaluate preparedness and strengthen problem-solving skills.
How to Use These Practice Sheets
Built using the official NCERT book for Class 8 Science, these practice materials provide reliable academic guidance. Pair your practice with our recommended NCERT solutions to master optimal problem-solving approaches.
Enhance Speed with Online Practice
Explore our broader library of printable assignments, chapter notes, and mock tests designed to support continuous revision and secure higher marks in CBSE assessments.
FAQs
You can download the teacher-verified PDF for CBSE Class 8 Science Health and Hygiene First Aid Worksheet Set 01 from StudiesToday.com. These practice sheets for Class 8 Science are designed as per the latest CBSE academic session.
Yes, our CBSE Class 8 Science Health and Hygiene First Aid Worksheet Set 01 includes a variety of questions like Case-based studies, Assertion-Reasoning, and MCQs as per the 50% competency-based weightage in the latest curriculum for Class 8.
Yes, we have provided detailed solutions for CBSE Class 8 Science Health and Hygiene First Aid Worksheet Set 01 to help Class 8 and follow the official CBSE marking scheme.
Daily practice with these Science worksheets helps in identifying understanding gaps. It also improves question solving speed and ensures that Class 8 students get more marks in CBSE exams.
All our Class 8 Science practice test papers and worksheets are available for free download in mobile-friendly PDF format. You can access CBSE Class 8 Science Health and Hygiene First Aid Worksheet Set 01 without any registration.