Page 24 - Viva ICSE Science 4 : E-book

3. List the functions of each of the following nutrients.

(a) Carbohydrates (b) Fats

(c) Proteins (d) Vitamins
(e) Minerals (f) Roughage

4. What is a balanced diet? Write its importance.

5. Why is it necessary to avoid wastage of food? List some ways to reduce its
wastage.

6. Explain the ways in which you can preserve food and prevent it from getting
spoilt.

7. Why is water essential for the body?

THINK AND ANSWER

1. Which nutrient helps in the formation of your bones and teeth?
2. Why is roughage important in our diet?
3. You have learnt that too much intake of fat is not good for health. What do you think
will happen if other nutrients are taken in too much quantity in the diet?

TALK ABOUT

1. Why do we heat food items before canning or bottling them?
2. Discuss ways to reduce wastage of food.

3. Your younger brother mostly eats unhealthy food. How can you help him to develop healthy
eating habits?

LINK AND LEARN

We eat diff erent fruits and vegetables in diff erent seasons. Find out about seasonal fruits and
vegetables grown in our country and make a report. Discuss your report in the class.

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