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Answer:
DAV MODEL SCHOOL, DURGAPUR
SESSION: 2020-2021
CLASS: V SUBJECT – SCIENCE Date: 29/07/2020
CHAPTER- 5
FOOD AND HEALTH
Answer the following questions in brief:
1. State the two main categories of diseases.
Ans. Two main categories of diseases are-
Communicable disease
Non-Communicable disease
2. Write two symptoms of the disease “Beri-Beri”.
Ans. Two symptoms of “Beri-Beri” are-
i) Extreme weakness
ii) Paralysis of body parts
3. Name any two diseases that are spread through the bite of mosquitoes.
Ans. Malaria and Dengue are the two diseases spread by the bite of mosquitoes.
4. A girl finds it difficult to see in dim light and has dry and scaly skin. Name the disease she
might be suffering from.
Ans. The girl must be suffering from Night Blindness .
5. Why should we not allow water to stagnate around our homes?
Ans. We should not allow water to stagnate around our homes because it becomes a breeding
place of mosquitoes . The mosquitoes act as carriers of various diseases like
malaria, dengue etc .
Answer the following questions:
1. How does calcium-phosphorus deficiency affect our body?
Ans. Calcium-phosphorus deficiency makes our bones weak, soft and fragile. Also the teeth
become weak and loose their shine and whiteness.
2. Suggest some measures that can help us to prevent the occurence of deficiency diseases.
Ans. The steps that help us to prevent the occurence of deficiency diseases are-
We should take a balanced diet , that contains all the nutrients.
We must follow good food practices.
Children must be given adequate amounts of milk and milk products along with
additional food items like juices, soft boiled rice, porridge etc.
3. How can we prevent the spread of germs from a sick person to a healthy person?
Ans. We can prevent the spread of germs from a sick person to a healthy person by observing
the following precautions