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Key Point: Simple photosynthesis idea (class 4 level): Sunlight + Water + Air (carbon dioxide) + Leaves → Food (for the plant) + Oxygen
What is food? Food is what we eat and drink to grow, stay healthy and have energy to play and study. Food gives our body the materials to build muscles, bones and keep us warm.
Why do we need food? Food provides nutrients — substances the body needs. These include carbohydrates (for energy), proteins (for growth and repair), fats (for energy and warmth), vitamins and minerals (for health and protection) and water (for life).
Where does our food come from? Mostly from plants and animals. Plants give us rice, wheat, vegetables, fruits, pulses, oil and sugar. Animals give us milk, eggs, meat, honey and fish. Farmers and gardeners grow food, and animals are reared for many food items.
How is food produced (simple idea) Plants make their own food in leaves using sunlight, water and air (this is why we grow fruits and vegetables). People plant seeds, water them and care for them until they become food.
Balanced diet and habits Eating different types of food in right amounts is called a balanced diet. It keeps us strong and prevents illnesses. Washing hands before eating, eating fresh food, and keeping food covered are important habits.
Food and fun Food is also part of festivals, picnics and playtime — sharing tasty, healthy food with family and friends makes celebrations enjoyable. But too much fried or sugary food is not good for health.
Simple tips for children
Key Point: Purpose of food = Energy + Growth + Protection (simple way to remember why we eat).
Food gives our body energy, helps us grow and keeps us healthy. Different foods have different nutrients. Each nutrient does a special job. Eating a variety of foods every day gives the body what it needs.
Main types of food (nutrients):
Balanced diet: A meal that contains the right amounts of all the main nutrients is called a balanced diet. Children should eat foods from all groups every day — cereals, pulses, vegetables, fruits, milk, and small amounts of fats and sweets.
Why variety matters: No single food gives all nutrients. For example, rice gives energy but little calcium; milk gives calcium but less iron. Eating different foods ensures the body gets everything it needs.
Tips for children: Eat colorful fruits and vegetables, include a protein source at meals, choose whole grains, drink plenty of water, and limit too much sugar and fried foods.
Key Point: Producers (plants) → Consumers (herbivores → carnivores) → Decomposers
What are Sources of Food?
Sources of food are the plants, animals and other living things from which we get the food we eat. Every living thing needs food for energy, growth and repair.
Main sources
How food reaches us
Food is produced on farms (agriculture), in orchards (fruits), in fisheries (fish), and by animal rearing (dairy and poultry). After harvest or rearing, food is processed, transported and sold in markets before we eat it.
Food chain and food web (simple idea)
Plants make their food using sunlight and are called producers. Animals that eat plants are herbivores. Animals that eat other animals are carnivores. Decomposers like fungi and bacteria break down dead plants and animals and return nutrients to the soil. A simple food chain is: Grass → Goat → Human. Many food chains connected together make a food web.
Why we must protect food sources
We should save seeds, water, soil and forests, avoid wasting food, and protect farm animals and fish so future generations have enough food.
Key Point: Energy (kcal) ≈ 4 × (grams of carbohydrates) + 4 × (grams of protein) + 9 × (grams of fat)
Food and Nutrition means the food we eat and how our body uses it. Food gives us energy to play and learn, materials to grow and repair our body, and substances that protect us from diseases.
Main nutrients
Balanced diet
A balanced diet has the right amount of all the above nutrients. A simple plate rule is: half the plate with vegetables and fruits, one quarter with cereals (rice, roti), and one quarter with proteins (dal, pulses, eggs). Milk or curd can be taken with meals or as a drink.
Why good nutrition is important
Healthy eating tips for children
Signs of poor nutrition (what to watch for)
Teaching children using examples, food charts, and simple kitchen experiments (like preparing a balanced lunchbox) helps them understand and practise good nutrition.
Key Point: Rice to water (absorption method): 1 cup rice : 2 cups water (approximate; may vary by rice type).
What does preparing food mean?
Preparing food is the set of simple steps we do to turn raw ingredients into meals we can eat. It includes choosing ingredients, cleaning them, cutting or mixing, cooking or arranging, and serving. Preparing food also means keeping food clean and safe to eat.
Basic steps in preparing food
Common cooking methods (short explanation)
Safety and hygiene tips
Healthy habits
Prepare meals that include different food groups (grains, dals/pulses, vegetables, fruits, milk and little fat). Some cooking methods keep nutrients better (steaming, light boiling) while overcooking may reduce vitamins.
Key Point: Total cost = Cost per person × Number of people. Example: if cost per person is Rs. 80 and 4 people eat, Total cost = 80 × 4 = Rs. 320.
Places to eat are the different locations where people have their meals. For a Class 4 student, these usually include home, school, restaurants or small eateries, food stalls, picnics in parks, and parties. Each place has its own features — for example, food at home is usually cooked by family members and is familiar, the school canteen provides quick lunches for many children, restaurants offer different tastes, and street vendors sell snacks during outings.
When choosing a place to eat, think about a few simple points: hygiene (is the place clean?), safety (is the food fresh and well-cooked?), cost (is it affordable?), taste and choice, and company (who you are eating with). Good manners and simple hygiene habits — such as washing hands before eating, using clean plates, and eating cooked food — are important no matter where you eat.
In class activities you can compare places to eat by doing a short survey (e.g., "Where did you eat lunch yesterday?") and then use the answers to make charts. This helps you learn which places are most common and why people prefer them.
Key Point: Balanced plate = 1/2 fruits & vegetables + 1/4 cereals (grains) + 1/4 proteins + small portion dairy + little healthy fat
What are eating habits? Eating habits are the ways we choose, prepare and eat food every day. Good eating habits help our body grow, give us energy to play and study, and keep us healthy.
Why good eating habits matter
Healthy eating habits for children
Table manners are polite ways of behaving while eating. They make mealtimes pleasant for everyone.
Consequences of bad habits
How to make a balanced plate
Try to fill your plate like this: half with fruits and vegetables, one quarter with cereals (rice, roti, bread) and one quarter with protein foods (dal, eggs, paneer). Add a small portion of milk or curd and a little healthy fat.
Tip for parents and teachers: Teach children by example — eat together, show polite behaviour, and involve them in simple meal preparation to build good habits.
Key Point: Handwashing time = 20 seconds (sing 'Happy Birthday' twice while scrubbing palms, between fingers and under nails).
What is Food Safety and Hygiene?
Food safety and hygiene means keeping food clean and safe so nobody gets sick after eating. It includes how we store, prepare, cook and eat food, and how we keep our hands, utensils and kitchen clean.
Why it is important
Dirty food or food handled without care can have tiny living things called germs (bacteria, viruses) that make us ill. Simple actions like washing hands, cooking food properly and storing food correctly stop these germs.
How germs spread
Simple steps to keep food safe
Hygiene while eating
Always wash your hands before eating, eat on a clean plate, avoid sharing spoons or tumblers, and chew food properly. Drink clean water.
Signs of unsafe food
Bad smell, slimy texture, change in colour, mould, or fizzing in canned food are signs food may be unsafe—do not eat it.
School lunch (tiffin) tips
Use an insulated box for hot foods, keep wet and dry foods separately, and if food smells or looks strange after school, don’t eat it.
Key Point: Healthy Snack = Natural Ingredients + Low Added Sugar + Low Unhealthy Fat
What are healthy snacks? Healthy snacks are foods that give our body the right nutrients — like vitamins, minerals, protein, carbohydrates and good fats — and help us grow, play and learn. Examples are fruits, vegetables, yogurt, nuts (if not allergic), sprouts and homemade popcorn.
What is junk food? Junk food is tasty but has too much sugar, salt and unhealthy fat, and not many nutrients. It gives quick energy but does not help us stay healthy. Examples are chips, candies, fizzy drinks, many packaged cookies and deep-fried fast foods.
Why choose healthy snacks?
Why avoid eating too much junk food?
How to pick better snacks: Look for fresh, simple foods. If you want something crunchy, try roasted chickpeas or carrot sticks instead of chips. If you want something sweet, try a fruit or homemade fruit salad instead of candy. Drink water or milk instead of sugary drinks.
Easy healthy snack ideas: apple slices with peanut butter (if no allergy), banana, cucumber and tomato sticks, yogurt with fruit, whole-wheat sandwich with paneer or egg, roasted makhana (fox nuts), boiled corn with a little lemon.
Tip for parents and children: Keep healthy snacks visible and ready. Treat junk food as an occasional treat, not a daily habit. Read labels for sugar and salt if you buy packaged food.
Note: Always check for allergies (like nuts) before trying a snack and wash fruits and vegetables well.
Key Point: Fraction eating a food = number of people who eat that food / total number of people (example: 9 of 12 children like sweets → 9/12).
What are special foods? Special foods are dishes that people make or eat for festivals, celebrations or important days. These foods are often tied to tradition, season, religion or a harvest. They are usually shared with family and friends and make the celebration memorable.
Why do people eat special foods during festivals?
How special foods are different:
Safety and health: Even on festivals, try to eat a balanced meal. Wash hands before cooking and eating, help elders in the kitchen, and eat sweets and fried foods in moderation.
How to learn and explore: You can ask family about recipes, make a class survey of favourite festival foods, or make a food calendar that shows which foods belong to which festival.
Key Point: Food waste percentage = (Amount of food wasted ÷ Total amount of food prepared) × 100. Example: If 2 kg is wasted out of 10 kg prepared, waste% = (2 ÷ 10) × 100 = 20%.
What is food wastage? Food wastage means the food that is prepared or bought but not eaten and is thrown away. This can be food left on plates, food that goes bad in the fridge, or extra food thrown out after a party.
Why does food get wasted?
Why is wasting food a problem?
How can we save food? Simple things children can do:
Result of conserving food: When we waste less, we save money and water, help the environment, and ensure more people get food. Small actions by many children and families make a big difference.
Key Point: Balanced plate (simple ratio): 50% vegetables & fruits + 25% grains (cereals) + 25% protein (pulses, meat, eggs, dairy)
What is Food and Culture?
Food and culture means the ways in which people’s food choices, cooking methods, eating habits and food-related celebrations are shaped by where they live, their traditions, religion and family life. Food is more than taste and nutrition — it tells us who people are, what they celebrate, and how families and communities come together.
Why culture affects food
How culture shows in everyday food
Food, health and respect
Good culture around food also teaches healthy eating — a variety of foods from different food groups — and respect for food (not wasting it). Children learn to enjoy local foods while also trying healthy foods from other places.
Simple classroom activities
Key Point: Servings needed = (servings per person) × (number of people). Example: If 1 sandwich per child and 15 children, total sandwiches = 1 × 15 = 15.
Activities and Learning Skills in the chapter 'Food and Fun' help Class 4 children learn about food, health and teamwork by doing hands‑on tasks. These activities teach observation, classification, measuring, recording, creativity and safe behaviour while making food or studying it.
Key points children learn:
Typical classroom activities include taste tests, food sorting games, making a balanced‑plate poster, keeping a one‑week food diary, and preparing simple snacks with teacher supervision. Each activity links a practical task to a skill: for example, a taste test builds observation and recording skills; preparing a snack builds following instructions and measuring skills.