📘 Class 1 Science – Chapter 7: Air Around Us
Revision Notes (English)
1. What is Air?
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Air is all around us.
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We cannot see air, but we can feel it.
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Air is made up of gases like oxygen, nitrogen, and carbon dioxide.
2. Importance of Air
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We breathe air to stay alive.
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Plants need air for photosynthesis.
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Air helps in pollination (spreading pollen).
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Air helps boats to sail and kites to fly.
3. Uses of Air
| Use | Example |
|---|---|
| Breathing | Humans, animals need oxygen |
| Helping plants grow | Plants use carbon dioxide |
| Flying | Kites, balloons, airplanes |
| Moving things | Wind pushes boats, fans, windmills |
4. Wind
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Moving air is called wind.
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Wind can be gentle (breeze) or strong (storm).
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Wind helps in pollination and spreading seeds.
5. Fun Facts
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Air takes up space.
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Air has weight.
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Air is all around us, even though we cannot see it.
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Birds and airplanes fly because of air.
MCQs for Practice (5 Questions)
1️⃣ We breathe —
(a) Water
(b) Air
(c) Soil
(d) Food
👉 Answer: (b) Air
2️⃣ Moving air is called —
(a) Breeze
(b) Wind
(c) Cloud
(d) Storm
👉 Answer: (b) Wind
3️⃣ Plants need air for —
(a) Growing fruits
(b) Photosynthesis
(c) Making soil
(d) Growing roots
👉 Answer: (b) Photosynthesis
4️⃣ Air can —
(a) Be seen
(b) Be felt
(c) Be eaten
(d) Be broken
👉 Answer: (b) Be felt
5️⃣ Kites fly because of —
(a) Water
(b) Air
(c) Soil
(d) Sunlight
👉 Answer: (b) Air
✅ Quick Tip for Revision:
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Learn importance of air for humans, animals, and plants.
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Remember wind helps in flying kites, boats, and seeds.
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Air is invisible but everywhere.