"Our Body and Health" is a foundational topic in Environmental Studies (EVS) for Varg-3 (Primary Level) of MP TET. This topic integrates basic biology with health education, making it essential for teaching young learners about themselves and healthy living practices.
In the exam, expect questions on identification of body parts and their functions, the five sense organs and their roles, personal hygiene practices, and common childhood diseases with prevention methods. Questions often use child-friendly scenarios—matching sense organs to functions, identifying healthy habits from pictures, or recognizing symptoms of common ailments.
Mastering this topic requires understanding both the content knowledge and how to make it relatable for children aged 6–11 years. Teachers must connect abstract concepts (like digestion or circulation) to children's everyday experiences in MP's diverse rural and urban contexts.
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Key Concepts
**External body parts** include head, neck, trunk (chest and abdomen), arms, hands, legs, and feet. Children learn to name, locate, and understand basic functions of each part.
**Internal organs** perform life-sustaining functions: heart pumps blood, lungs help breathing, stomach digests food, brain controls the body, and kidneys filter waste.
**Five sense organs** connect us to the environment: eyes (sight), ears (hearing), nose (smell), tongue (taste), and skin (touch). Each has a specific receptor that sends signals to the brain.
**Personal hygiene** refers to daily practices that maintain cleanliness and prevent disease—bathing, brushing teeth, handwashing, nail trimming, and wearing clean clothes.
**Balanced diet** includes carbohydrates, proteins, fats, vitamins, minerals, and water in proper proportions. Local foods like dal-chawal, sabzi, roti, and fruits provide these nutrients.
**Communicable diseases** spread from person to person through air, water, food, or contact (e.g., cold, flu, diarrhoea, chickenpox). **Non-communicable diseases** do not spread (e.g., diabetes, asthma).
**Vaccination/Immunization** protects children from serious diseases like polio, measles, tuberculosis, and hepatitis. India's Universal Immunization Programme covers these.
**First aid** refers to immediate care given before medical help arrives—cleaning wounds, applying bandages, and keeping the patient calm.
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Formulas / Key Facts
| Sense Organ | Sense | Function | |-------------|-------|----------| | Eyes | Sight | Detect light, colour, shape, movement | | Ears | Hearing | Detect sound waves | | Nose | Smell | Detect odours; also aids breathing | | Tongue | Taste | Detects sweet, salty, sour, bitter, umami | | Skin | Touch | Detects pressure, temperature, pain |
**Must-Remember Facts:**
1. The human body has 206 bones (adults) and approximately 600 muscles.
2. The heart beats about 70–100 times per minute in children.
3. Lungs take in oxygen and release carbon dioxide during breathing.
4. The small intestine is about 6–7 metres long and absorbs nutrients.
5. Handwashing with soap for at least 20 seconds kills most germs.
6. ORS (Oral Rehydration Solution) = 1 litre clean water + 6 teaspoons sugar + half teaspoon salt—used for diarrhoea.
*Question:* Ramesh closed his eyes and identified a mango by its smell and taste. Which sense organs did he use?
*Solution:*
Smell → Nose
Taste → Tongue
**Answer:** Nose and Tongue
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**Example 2: Hygiene Practice**
*Question:* Seema often falls sick with stomach problems. Her teacher observed she eats without washing hands. What hygiene practice should she follow and why?
*Solution:*
Practice: Wash hands with soap before eating
Reason: Dirty hands carry germs that enter the body through food and cause stomach infections (diarrhoea, worms)
**Answer:** Seema should wash hands with soap for 20 seconds before meals to prevent germs from entering her digestive system.
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**Example 3: Disease Prevention**
*Question:* During monsoon, many children in a village got malaria. What causes malaria and how can it be prevented?
*Solution:*
Cause: Malaria is caused by Plasmodium parasite, spread by female Anopheles mosquito bite
Prevention measures:
Use mosquito nets while sleeping
Do not allow water to stagnate (breeding ground)
Use mosquito repellents
Wear full-sleeved clothes in evening
**Answer:** Malaria spreads through mosquito bites. Prevention includes using mosquito nets, removing stagnant water, and using repellents.
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Common Mistakes
| Wrong Thinking | Correct Understanding | |----------------|----------------------| | "Skin is not a sense organ because it covers the whole body" | Skin is the largest sense organ; it has receptors throughout that detect touch, temperature, pressure, and pain. | | "All diseases spread from person to person" | Only communicable diseases spread. Non-communicable diseases like diabetes, heart disease, and asthma do not spread through contact. | | "Tongue has specific zones for each taste (tip = sweet, sides = sour)" | This "tongue map" is a myth. All taste buds across the tongue can detect all five basic tastes. | | "Vaccination causes the disease it prevents" | Vaccines contain weakened or dead pathogens that train the immune system without causing the actual disease. | | "Hygiene means only bathing daily" | Hygiene includes multiple practices: handwashing, oral care, nail trimming, clean clothes, clean surroundings, and safe food handling. |
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Quick Reference
**5 Sense Organs:** Eyes-Ears-Nose-Tongue-Skin (Remember: EENTS)
**ORS Formula:** 1L water + 6 tsp sugar + ½ tsp salt (for diarrhoea)
Which sense organ in our body helps us to taste different types of food?
Q2 · Our Body and Health · MEDIUM
A child is suffering from a disease caused by the deficiency of Vitamin A. Which of the following health problems is the child most likely to face?
Q3 · Our Body and Health · MEDIUM
Ravi washes his hands only with water before eating food. His teacher explained that he should wash hands with soap and water. What is the main reason for using soap while washing hands?
Q4 · Our Body and Health · HARD
A student observes that after playing in the sun for a long time, he sweats a lot and feels very thirsty. He also notices that the colour of his urine becomes darker than usual. What is the scientific reason for the darker colour of urine in this situation?
Q5 · Our Body and Health · EASY
निम्नलिखित में से कौन सा विटामिन हमारी आँखों के स्वास्थ्य के लिए आवश्यक है?