Chapter 3, The Mystery of Food, looks at where our food comes from, what a balanced diet means, and how food chains connect living things. These questions revisit those ideas.
Practice Questions
Q1. Give two examples of food that comes from plants and two that come from animals.
From plants: rice and wheat; from animals: milk and eggs.
Q2. What is a balanced diet?
A diet that includes the right amounts of different food groups — carbohydrates, proteins, fats, vitamins and minerals — needed for a healthy body.
Q3. What is a food chain? Give a simple example.
A food chain shows who eats whom in order, for example: grass → grasshopper → frog → snake.
Q4. Why do we need to cook some foods before eating them?
Cooking makes many foods safer to eat by killing germs, and easier to digest and taste.
Q5. Name one food that is a good source of protein for someone who does not eat meat.
Pulses and lentils (dal), or paneer and milk, are good vegetarian sources of protein.
Why These Help
Understanding balanced diets and food chains helps students make sense of why variety on the plate matters, and how every meal connects back to plants, animals and the wider environment.
Frequently Asked Questions
Q. Why is it important to eat different kinds of food rather than the same thing every day?
Because no single food gives the body everything it needs, so eating a variety of foods ensures we get all the different nutrients required for growth and energy.
See the Chapter 3 Solutions and Revision Notes for the full walkthrough.
