Class 6 Science Chapter 3 Notes 🍽️ Mindful Eating: A Path to a Healthy Body (New NCERT "Curiosity" | 2025-26)

Class 6 Science (Curiosity) Chapter 3: Mindful Eating – A Path to a Healthy Body
Full A-Z Detailed Notes (2026-27 NCERT New Book)

1. Opening Thought (Easy to Recall)

Sanskrit Saying: “कोऽरुक् ? कोऽरुक् ? कोऽरुक् ? हितभुक् हितभुक् ऋतुभुक्” Meaning: Who is healthy? One who eats wholesome food, in moderate quantity, at the right time and place.

Key Line: “Annena jātāni jīvanti” → Food gives life to all living beings.

Remember: Food = Life + Energy + Growth + Protection + Health

2. 3.1 What Do We Eat?

• Food is essential every day.
• Our food choices vary by region, culture, crops grown, taste and tradition.
• India has huge diversity in food because of different soil and climate.

Activity 3.1 (Do at home): Make Table 3.1 → List food items eaten for 1 week. Observe: Same food every day or variety? Compare with friends.

Activity 3.2 (Explore): Fill Table 3.2 for different states (Punjab, Karnataka, Manipur + more). Pattern to remember: Traditional food = locally grown crops (e.g., Punjab → wheat + makki di roti; Karnataka → ragi + dosa).

3.1.2 How have cooking practices changed?

• Old → Chulha (wood fire), sil-batta (stone grinder)
• New → Gas stove, electric grinder

Why changed? Technology, better transport & communication. Mnemonic: Old = Manual + Fire (Chulha + Sil-batta) → New = Easy + Electric.

Fig. 3.1 (Visualise this): Four pictures side-by-side – (a) Traditional clay chulha, (b) Modern gas stove, (c) Stone sil-batta, (d) Electric grinder.

3.2 What are the Components of Food? (Nutrients)

Food has 7 main components. Easy Mnemonic: C-F-P-V-M-W-R Carbohydrates | Fats | Proteins | Vitamins | Minerals | Water | Roughage (Fibre)

Energy-Giving Foods (Carbs + Fats)

• Carbohydrates → Instant energy (glucose) Sources: Wheat, rice, maize, potato, banana, mango, sugarcane, sugar.
• Fats → Stored energy + keeps warm Sources: Ghee, oil, nuts (almond, walnut, groundnut), seeds, butter, curd.

Fig. 3.2 (Carbs sources collage): Potato, sugarcane, banana, pineapple, sweet potato, wheat, rice, bajra, maize, mango. Fig. 3.3 (Fats sources collage): Walnut, sunflower seeds, pistachios, soya bean, cashew, sesame seeds, groundnut, almonds, butter, curd.

More to Know: Polar bears store thick fat layer for hibernation (no food for months).

Body-Building Foods (Proteins)

• Help growth + repair muscles.
• Plant sources: Pulses (gram, moong, tuar dal), beans, peas, soya, nuts.
• Animal sources: Milk, paneer, egg, fish, chicken, meat.

Fig. 3.4: (a) Plant proteins – Gram, moong, tuar dal, kidney beans, peas, soya. (b) Animal proteins – Fish, eggs, paneer, chicken.

Protective Foods (Vitamins + Minerals)

Protect from diseases. Fig. 3.5 Table (Memorise this chart – very important!)

Nutrient	Function	Sources	Deficiency Disease	Symptoms
Vitamin A	Eyes + skin healthy	Papaya, carrot, mango, milk	Night blindness	Poor vision in dark
Vitamin B1	Heart + body functions	Whole grains, nuts, milk	Beriberi	Swelling, tingling in hands/feet
Vitamin C	Fights diseases + heals wounds	Amla, guava, orange, lemon	Scurvy	Bleeding gums
Vitamin D	Calcium absorption (bones)	Sunlight, milk, fish, eggs	Rickets	Soft/bent bones
Calcium	Strong bones + teeth	Milk, curd, paneer	Bone decay	Weak bones, tooth decay
Iodine	Physical + mental growth	Iodised salt, seaweed	Goitre	Swelling in neck
Iron	Blood formation	Green leafy veg, beetroot	Anaemia	Weakness, shortness of breath

Fig. 3.6 (Vitamins sources): Four small panels – (a) Vit A: papaya, mango, carrot; (b) Vit B1: wheat, rice, paneer, seeds; (c) Vit C: orange, amla, lemon, guava; (d) Vit D: fish, mushroom, eggs, butter.

Water & Roughage (Fibre)

• Water: Absorbs nutrients, removes waste (sweat + urine). Drink enough daily!
• Roughage (Fibre): No nutrition but clears undigested food, prevents constipation. Sources: Green leafy vegetables, fruits, whole grains, pulses, nuts.

Scientist to Remember: Dr Coluthur Gopalan – Started nutrition research in India → Mid-Day Meal (now PM POSHAN).

3.3 How to Test Nutrients? (Simple Lab Tests – Very Important for Exams)

Activity 3.5 – Test for Starch (Carbohydrate)

• Drop dilute iodine on food.
• Blue-black colour = Starch present. Fig. 3.7: Dishes with potato, bread, rice, etc. + dropper adding iodine.

Activity 3.6 – Test for Fat

• Press food on paper → Oily patch + shines in light = Fat present.

Activity 3.7 – Test for Protein (Teacher demo)

• Make paste → Add copper sulphate + caustic soda → Violet colour = Protein present. Fig. 3.8: Pestle-mortar + test tubes + droppers.

Table 3.3 (Fill in practical): Record Yes/No for starch, fat, protein in potato, rice, peanuts, etc. Key Point: Most foods have more than one nutrient (e.g., peanuts = protein + fat).

3.4 Balanced Diet

• Contains all nutrients + roughage + water in right amounts.
• Needs change with age, activity, health.
• Junk food (high sugar/fat, low nutrition) → obesity + health problems. Example: Potato wafers vs Roasted chana → Choose chana!

Fig. 3.9: Sanwa (Barnyard millet) – small nutritious grains.

3.5 Millets – Nutri-Cereals (New Focus in 2026-27 Book)

• Jowar, bajra, ragi, sanwa – native Indian crops.
• Easy to grow, rich in vitamins, minerals, iron, calcium, fibre.
• Called nutri-cereals.
• Packaged foods show nutrition info (FSSAI rule). Some foods are fortified (extra nutrients added) e.g., iodised salt.

3.6 Food Miles – From Farm to Plate

Fig. 3.10 (Story of Chapati): Flowchart – Farmer grows wheat → Threshing & winnowing → Storage → Grinding & packing → Transport to shop → Chapati on plate. Food miles = Total distance food travels. Why reduce? Less cost, less pollution, supports local farmers, fresher food.

Summary (Easy 10-point revision list)

1. Food diversity due to local crops.
2. Cooking changed from traditional to modern.
3. 7 components: C-F-P-V-M-W-R.
4. Carbs + Fats = Energy.
5. Proteins = Growth.
6. Vitamins + Minerals = Protection (learn table!).
7. Water + Fibre = Must for digestion.
8. Balanced diet = All nutrients in right quantity.
9. Avoid junk food.
10. Eat local millets + reduce food miles + no wastage.

Keywords to Memorise: Carbohydrate, Fats, Proteins, Vitamins, Minerals, Roughage, Balanced diet, Deficiency diseases, Food miles, Millets, Iodised salt.

End-of-Chapter Questions (Quick Answers for Exam)

1. Odd one: (i) Chana (others are millets) (ii) Rice (others are pulses). 2–13. (Write short answers using above points – e.g., Q5: Medu needs more fibre + vegetables to avoid constipation.)

Mindful Eating Tips (Final Golden Rules – Easy to Remember)

• Eat local + seasonal + plant-based.
• Take only what you can finish (no wastage).
• Eat slowly, chew well.
• Support local farmers.
• Health is the ultimate wealth!

These notes cover every line, activity, figure, table and question from the NCERT book. Revise the mnemonic C-F-P-V-M-W-R and the vitamin-mineral table daily – you will score full marks! Stay curious and eat mindfully! 🥗