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Tamil Nadu (TNBSE)Class 1 EVS★ 3-4 marks in TN Class 1 Term 1 exam — oral naming, picture labelling, and short written answers

My Wonderful Body

Samacheer Kalvi (TN State Board) Class 1 Environmental Science — Chapter 2, My Wonderful Body. Body parts and the five senses. Study notes, key concepts, worked examples, practice questions and quick revision for exam preparation.

⏱ 10 min readEasy difficulty✓ Free · NCERT-aligned

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Study Guide

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By the end of this chapter you'll be able to…

1Name and point to main body parts — head, eyes, ears, nose, mouth, neck, shoulders, arms, hands, fingers, legs, feet, toes, trunk
2Name the five sense organs and what each does — eyes see, ears hear, nose smells, tongue tastes, skin feels
3Explain one everyday action for each sense (e.g., 'I use my eyes to read')
4List at least three ways to keep the body clean

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Why this chapter matters

This is the first chapter where a child learns about their own body — the parts they can see and the five senses they use every moment. Knowing how eyes see, ears hear, and hands hold builds body awareness and the habit of keeping clean. It is the starting point for all later biology.

My Wonderful Body — Class 1 Environmental Science (Samacheer Kalvi)

TN State Board (Samacheer Kalvi) Class 1 Environmental Science, Chapter 2. Body parts and the five senses.

1. About this chapter

This chapter covers My Wonderful Body as part of the Class 1 Samacheer Kalvi Environmental Science curriculum. It deals with body parts and the five senses and builds conceptual understanding essential for the TN School Term Exam.

By the end of this chapter, students will be able to:

Name parts of the human body
Identify the five sense organs

2. Key concepts

Concept 1: Name parts of the human body.
Concept 2: Identify the five sense organs.

3. Important terms and formulas

Term / Formula	Description
Name parts of the…	Name parts of the human body
Identify the five sense…	Identify the five sense organs

4. Worked examples

Example 1. Applying a key concept from this chapter.

Solution: Identify the relevant principle → apply the formula or rule → state the answer with correct units.

Example 2. A typical exam-style question on my wonderful body.

Solution: Break the problem into steps, use the appropriate formula and verify the answer.

5. Common mistakes

Mistake: Skipping units or forgetting to state them. Fix: Always write units alongside every quantity and answer.
Mistake: Confusing similar terms or concepts in this chapter. Fix: Make a comparison table of the terms during revision.

6. Practice (exam-style)

Define the main term or principle covered in Chapter 2.
Give two real-life examples related to my wonderful body.
Solve a short numerical or descriptive question from this chapter.
State one important formula and explain each symbol.

7. Answer key (hints)

Refer to section 2 (Key concepts) above for the definition.
Examples should be drawn from daily experience and local context.
Apply the formula from section 3, show all steps clearly.
Formula with units — refer to the textbook glossary for symbol meanings.

8. Quick revision

Class 1 Environmental Science — Chapter 2: My Wonderful Body.
Core idea: Body parts and the five senses.
Key outcomes: Name parts of the human body; Identify the five sense organs.
Always revise diagrams / tables from the Samacheer Kalvi textbook before the exam.

Key formulas & results

Everything you need to memorise, in one card. Screenshot this for revision.

Five sense organs and what they do

Eyes → See. Ears → Hear. Nose → Smell. Tongue → Taste. Skin → Feel (touch).

Each sense organ sends messages to the brain. The brain tells us what we see, hear, smell, taste, or touch.

Three main body sections

Head (eyes, ears, nose, mouth) → Trunk (chest, stomach, back) → Limbs (arms + hands, legs + feet).

The head holds the brain and sense organs. The trunk holds the heart, lungs, and stomach. The limbs help us move and work.

Keeping the body clean

Bathe daily → Brush teeth twice → Wash hands with soap → Comb hair → Trim nails → Wear clean clothes.

A clean body stays healthy. Germs grow on dirty skin, nails, and teeth and make us sick.

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Common mistakes & fixes

These are the exact errors that cost students marks in board exams. Read them once, save yourself the trouble.

WATCH OUT

✗ Saying the nose tastes food

✓ The tongue tastes food. The nose only smells it. Both work together when we eat — that's why food feels tasteless when the nose is blocked.

WATCH OUT

✗ Confusing 'hand' and 'arm' or 'foot' and 'leg'

✓ The arm is from shoulder to wrist. The hand has fingers. The leg is from hip to ankle. The foot has toes.

WATCH OUT

✗ Forgetting skin is a sense organ

✓ Skin covers the whole body. It tells us if something is hot, cold, soft, hard, or painful.

Practice problems

Work through this chapter's problems as a readiness check — reveal each solution, mark yourself honestly, and get your gap report at the end.

Readiness check

Are you exam-ready for My Wonderful Body?

6 problems from this chapter. Try each one, reveal the worked solution, mark yourself honestly — get your gap report at the end.

6 questions~4 min worth ~4 marks in Tamil Nadu (TNBSE) exams

5-minute revision

The whole chapter, distilled. Read this the night before the exam.

•Body parts: head, eyes, ears, nose, mouth, neck, shoulders, arms, hands, fingers, legs, feet, toes, trunk.
•Five senses: see (eyes), hear (ears), smell (nose), taste (tongue), feel (skin).
•Clean habits: bathe daily, brush teeth, wash hands with soap, comb hair, trim nails, wear clean clothes.
•All sense organs send messages to the brain — the brain tells us what is happening.

Tamil Nadu (TNBSE) marks blueprint

Where the marks come from in this chapter — so you can plan your prep.

Typical chapter weightage: 3-4 marks in TN Class 1 Term 1 EVS exam

Question type	Marks each	Typical count	What it tests
Oral / one-word answer	1	1	Naming body parts or sense organs
Picture labelling / matching	1-2	1	Labelling body parts or matching organs to functions
Short written answer	1	1	One way to keep the body clean or what an organ does

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Questions students ask

The real ones — pulled from the Q&A community and tutor sessions.

Eyes — see. Ears — hear. Nose — smell. Tongue — taste. Skin — feel touch, hot, cold, and pain.

Dirt and germs collect under long nails. When the child eats with dirty nails, germs enter the mouth and can cause stomach ache.

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