📘 Class 1 Science – Chapter 6: Water
Revision Notes (English)
1. Importance of Water
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We drink water to stay alive
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Water is used for cooking and washing
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Plants need water to grow
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Animals need water to drink and stay healthy
2. Sources of Water
| Source | Example |
|---|---|
| Rivers | Ganga, Yamuna |
| Ponds / Lakes | Dal Lake, Chilika Lake |
| Wells | Hand pump, tube well |
| Rainwater | Collected in tanks |
| Oceans / Sea | Saltwater |
3. Uses of Water
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Drinking – Keeps us healthy
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Cooking – Boiling, washing vegetables
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Cleaning / Washing – Clothes, utensils
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Irrigation – Water for crops
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Animals and Plants – Drink and grow
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Playing / Fun – Swimming, water games
4. Saving Water
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Don’t waste water
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Turn off taps after use
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Collect rainwater in pots or tanks
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Use water carefully for plants and animals
5. Forms of Water
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Liquid – Rivers, lakes, ponds
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Solid (Ice) – Snow, glaciers, ice cubes
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Gas (Water vapor / Steam) – Boiling water, clouds
6. Fun Facts
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Water covers 71% of the Earth
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Oceans have saltwater, we can’t drink it directly
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Water can change its form (liquid → solid → gas)
MCQs for Practice (5 Questions)
1️⃣ Which of these is a source of water?
(a) Tree
(b) River
(c) Sun
(d) Mountain
👉 Answer: (b) River
2️⃣ Water is needed for —
(a) Drinking
(b) Cooking
(c) Plants to grow
(d) All of these
👉 Answer: (d) All of these
3️⃣ What form of water is ice?
(a) Liquid
(b) Solid
(c) Gas
(d) None
👉 Answer: (b) Solid
4️⃣ Which water cannot be drunk directly?
(a) River water
(b) Pond water
(c) Ocean water
(d) Tap water
👉 Answer: (c) Ocean water
5️⃣ How can we save water?
(a) Turn off taps after use
(b) Waste water
(c) Let it overflow
(d) Pour on road
👉 Answer: (a) Turn off taps after use
✅ Quick Tip for Revision:
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Learn sources of water
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Remember uses of water
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Know forms of water and saving water tips