Hygiene
Hand washing, clean water, and brushing teeth.
Hygiene
Hygiene
What you'll learn
- Hand washing before meals and after toilet.
- Clean water for drinking and bathing.
- Brush teeth twice daily; clean nails.
- Looking Around 3, Chapter 8 (Water) and health habits.
Key concepts
Level 1 — Core idea
Verbal: Germs are tiny; soap and water wash many away from hands.
Symbolic: Hygiene → prevent illness + feel fresh.
Visual: Steps: wet, soap, scrub 20 sec, rinse, dry.
Level 2 — Going deeper
Boil or filter unsafe water. Cover cough with elbow. Trim nails so dirt does not hide underneath. Change into clean clothes after playing outdoors.
NCERT anchor
NCERT Looking Around 3, Chapter 8 clean water; school hygiene posters. Wash fruits before eating. Use dustbin for waste — keeps flies away.
Worked example
Why wash hands before lunch?
Step 1 — Hands touch doors, books, soil
Step 2 — Germs can enter mouth with food
Step 3 — Soap wash **reduces** germs ✓
Dirty pond water vs boiled water — which drink?
Step 1 — Pond may have **harmful germs**
Step 2 — Boiling kills many germs
Answer: **clean/boiled water** safe
Common mistakes
| Mistake | Why | Fix |
|---|---|---|
| Quick rinse enough | Skip soap | Use soap + scrub |
| Share used towel always OK | Germs spread | Use clean dry towel |
| Brush once enough | Bedtime skip | Twice daily recommended |
| Visible dirt only problem | Clean look = safe | Germs are invisible |
Quick check
- When must you wash hands?
- Why brush teeth?
- Safe drinking water — one rule.
- Stretch: Why cover sneeze with elbow not palm?
Revision tip: Sing happy birthday twice while scrubbing — good timer.
Open the Practice tab for graded questions on Hygiene.
Key Takeaways (TL;DR)
- What you'll learn
- Key concepts
- Worked example
- Common mistakes
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