NCERT 5th Class (CBSE) Science: Food and Health

Question: Explain any two communicable diseases in relation to their symptoms and preventive measures?

Answer: 

Question: Define diseases. What are the two types of diseases? Give two examples fore each.

Answer: Diseases is a state in which a function are part of the body is no longer in a healthy condition.

Two types of diseases are:

1. Communicable ( for e.g. – measles, malaria)
2. Non communicable (for e.g. – beri-beri, scurvy)

Question: Define hygiene. Mention any five ways to maintain proper hygiene?

Answer: Hygiene may be defined as practices that help to ensure cleanliness and good health.

The five ways are:

1. We should take a bath daily
2. We Should at least brush our teeth twice in a day
3. We should trim our nails regularly
4. We should keep our surroundings clean
5. We should wear clean clothes

Question: Define vaccination?

Answer: Vaccination is the use of the special substances called vaccines to prevent specific diseases.

Question: Define antibiotic?

Answer: Substances that can kill diseases -causing organisms are called antibiotics.

Question: What causes diseases like typhoid and and cholera?

Answer: These diseases are caused by consuming contaminated food or water.

Question: Define allergy?

Answer: Some people are sensitive to dust or certain foo, animal or drugs. Exposure to such subtances make these people ill causing itching, sneezing, rashes, etc. This condition is called allergy.