Properties of Air
ICSE · Class 2 · Science
Quick revision notes for Properties of Air — ICSE Class 2 Science. Key concepts, formulas, and definitions for last-minute revision.
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Key Topics to Revise
Air Around Us
- We cannot see air, but it is present everywhere around us.
- Moving air is called wind.
- Gentle wind is called a breeze; strong wind is called a storm.
Properties of Air
- Air occupies space — when you blow air into a balloon, it expands.
- Air has weight — a balloon with air weighs more than an empty one.
- Air expands on heating — when air gets hot, it takes more space.
Wind Vane
- A wind vane is a tool that shows the direction of the wind.
- It is usually placed on rooftops.
- One end is heavy (arrow), and the other is wide (tail) — the tail faces the wind.
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