Page 9 - ScienceStd4

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(a) Doing physical exercises (b) Eating a balanced diet

Figure 1: Following health principles

Activity 1

1. Use the library or reliable online sources to learn about
health principles.

2. Share your findings with your peers in the class for
discussion.

Balanced diet

A balanced diet is a meal with all the food nutrients in the
correct proportions. It is made up of foods from three main
groups. The groups are energy-giving foods, body-building
foods, protective foods. Energy-giving foods have carbohydrate
and fat nutrients. Body-building foods have protein nutrients.

Protective foods have vitamins and minerals nutrients. Eating
a balanced diet helps make the body’s immune system strong
to fight off diseases. Figure 2 shows examples of main food

groups in a balanced diet.

2

14/01/2025 18:38
SCIENCE AND TECHNOLOGY STD 4.indd 2
SCIENCE AND TECHNOLOGY STD 4.indd 2 14/01/2025 18:38