Clean
Handwashing, safe drinking water, Swachh Bharat.
Clean
Clean Water for Health
NCERT anchor
Looking Around 2 — Water. Handwashing, safe drinking water, and Swachh Bharat habits appear in the Water chapter.
What you'll learn
- Clean water prevents diseases.
- Dirty water has germs that cause stomach illness.
- Wash hands, drink safe water, keep surroundings clean.
Key concepts
Verbal: Clean water and clean hands stop germs that cause stomach illness. Wash with soap before eating.
Symbolic: Dirty water → germs → diarrhoea (intro). Soap + scrub 20 sec → remove germs.
Level 1 — Germ diseases
Cholera, diarrhoea from dirty water (intro names).
Level 1 — Clean habits
Wash hands before eating; drink boiled/filtered water when unsure.
Level 1 — Don't pollute
No trash in lakes and rivers.
Level 2 — Government help
Clean tap water, school hand-wash stations.
Level 2 — India
Swachh Bharat — toilets and clean villages; ORS for dehydration.
Worked example
Why wash hands with soap before lunch?
Step 1 — Hands touch dirt and **germs**.
Step 2 — Germs enter body with food.
Step 3 — Soap and water **remove** germs.
Answer: To stop germs entering mouth.
Common mistakes
| Mistake | Why | Fix |
|---|---|---|
| Clear water always clean | Germs invisible | May need boiling |
| Quick rinse enough | Soap needed | Scrub with soap 20 sec |
| Swim in dirty pond safe | Skin and mouth contact | Use clean pools |
Quick check
- Clean or muddy — which water to drink?
- When to wash hands?
- Name one disease from dirty water.
Stretch: Why is clear river water still unsafe to drink without boiling? When else should you wash hands besides meals?
Revision tip: Sing a short song while scrubbing hands — when the song ends, rinsing time!
Open the Practice tab for graded questions on Clean Water for Health.
Key Takeaways (TL;DR)
- NCERT anchor
- What you'll learn
- Key concepts
- Worked example
Master this topic with Drishti OS
Get unlimited mock tests, AI-powered mentorship, and complete video courses when you join.
Start Free Practice