Class 8
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Science
Health: The Ultimate Treasure
NCERT Solutions
NCERT Solutions
Health: The Ultimate Treasure
13 Solutions
Exercise:
All Exercises
Keep the curiosity alive
Prepare some questions based on your learnings so far ...
Reflect on the questions framed by your friends and try to answer ...
Q1
Keep the curiosity alive
Group the diseases shown in the images as communicable or non-communicable.
Q2
Keep the curiosity alive
Diseases can be broadly grouped into communicable and non-communicable diseases. From the options given below, identify 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)
Q3
Keep the curiosity alive
There is a flu outbreak in your school. Several classmates are absent, while some are still coming to school coughing and sneezing.
(i)
What immediate actions 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 hurtful?
(iii)
How can you protect yourself and others from getting infected in this situation?
Q4
Keep the curiosity alive
Your family is planning to travel to another city where malaria is prevalent.
(i)
What precautions should you take before, during, and after 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?
Q5
Keep the curiosity alive
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 offers you a cigarette at a party?
(iii)
How can schools help prevent students from indulging in such harmful habits?
Q6
Keep the curiosity alive
Saniya claims to her friend Vinita that "Antibiotics can cure any infection, so we don't need to worry about diseases." What question(s) can Vinita ask her to help Saniya understand that her statement is incorrect?
Q7
Keep the curiosity alive
The following table contains information about the number of dengue cases reported in a hospital over a period of one year:
S. No.
1
2
3
4
5
6
Month
January
February
March
April
May
June
No. of dengue cases
10
12
15
18
22
40
S. No.
7
8
9
10
11
12
Month
July
August
September
October
November
December
No. of dengue cases
65
65
65
30
30
20
Make a bar graph of the number of cases on the Y -axis and the month on the X-axis. Critically analyse your findings and answer the following:
(i)
In which three months were the dengue cases highest?
(ii)
In which month(s) were the cases lowest?
(iii)
What natural or environmental factors during the peak months might contribute to the increase in dengue cases?
(iv)
Suggest a few preventive steps that the community or government can take before the peak season to reduce the spread of dengue.
Q8
Keep the curiosity alive
Imagine you are in charge of a school health campaign. What key messages would you use to reduce communicable and non-communicable diseases?
Q9
Keep the curiosity alive
It is recommended that we should not take an antibiotic for a viral infection like a cold, a cough, or flu. Can you provide the possible reason for this recommendation?
Q10
Keep the curiosity alive
Which disease(s) among the following may spread if drinking water gets contaminated by the excreta from an infected person? Hepatitis A, Tuberculosis, Poliomyelitis, Cholera, Chickenpox.
Q11
Keep the curiosity alive
When our body encounters a pathogen for the first time, the immune response is generally low but on exposure to the same pathogen again, the immune response by the body is much more compared to the first exposure. Why is it so?
Q1
Prepare some questions based on your learnings so far ...
Q1
Reflect on the questions framed by your friends and try to answer ...
More from this chapter
Chapter overview
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