Page 42 - Innovator's Science-8

2. Diseases can be broadly grouped into communicable and non-communicable diseases. From the
op ons given below, iden fy the non-communicable diseases.
i. Typhoid ii. Asthma
iii. Diabetes iv. Measles
a. (i) and (ii) b. (ii) and (iii)
c. (i) and (iv) d. (ii) and (iv)
Ans. b. (ii) and (iii)

3. There is a flu outbreak in your school. Several classmates are absent, while some are s ll coming to
school coughing and sneezing.
i. What immediate ac ons should the school take to prevent further spread?
ii. If your classmate, who shares the bench with you, starts showing symptoms of the flu, how can you
respond in a considerate way without being rude or hur ul?
iii. How can you protect yourself and others from ge ng infected in this situa on?
Ans. i. The school should close temporarily, sani se classrooms, and encourage sick students to stay home
to prevent further spread.
ii. You can politely suggest that your classmate see a doctor and take a rest at home, and offer to share
notes with them.
iii. To protect yourself and others, wash your hands frequently, avoid close contact, and wear a mask.

4. Your family is planning to travel to another city where malaria is prevalent.
i. What precau ons should you take before, during, and a er the trip?
ii. How can you explain the importance of mosquito nets or repellents to your sibling?
iii. What could happen if travellers ignore health advisories in such areas?
Ans. i. To protect our family from malaria during travel, focus on preven ng mosquito bites and taking
prescribed preventa ve medica on.
• Before travel, consult a doctor, get necessary vaccina ons, and pack mosquito repellent and
protec ve clothing.
• During the trip, con nue using repellent, wear long sleeves and pants, and sleep under mosquito
nets.
• A er returning, monitor for any symptoms like fever, and seek immediate medical a en on if they
occur.
ii. Explain to your sibling that mosquitoes spread malaria and that nets or repellents protect by blocking
bites.
iii. If travellers ignore health advisories in such areas, they risk malaria infec on, severe illness, or even
death.

5. Your uncle has started smoking just to fit in with his friends, even though it is well known that smoking
can seriously harm health and even cause death.
i. What would you say to him to make him stop, without being rude?
ii. What would you do if your friend offered you a cigare e at a party?
iii. How can schools help prevent students from indulging in such harmful habits?
Ans. i. Dear Uncle, I care about you and your health. I want to talk to you about smoking because it can cause
serious illnesses like heart disease and lung cancer. If you quit smoking, it can make a big difference in
improving your health and helping you live a be er, longer life

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Science-8