Properties of Air — Chapter Summary
ICSE · Class 2 · Science
Summary of Properties of Air for ICSE Class 2 Science. Key concepts: We cannot see air, Air takes up space and Air has weight.
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Overview
Air is all around us, but we cannot see it. Even though we don't see it, we can feel it when it moves. Moving air is called wind. Air is very important for life on Earth. It helps us breathe, helps birds and kites fly, dries our clothes, and even helps plants grow by carrying seeds. In this chapter,
Key Concepts
We cannot see air
We cannot see air, but it is present everywhere around us. When air moves, we call it wind. Gentle wind is called breeze, and very strong wind is call
Air takes up space
Air takes up space. When we blow air into a balloon, it becomes big and round. This shows that air fills the space inside the balloon.
Air has weight
Air has weight. When we fill air into a balloon, it becomes heavier than an empty balloon. This shows that air has mass.
When air gets hot
When air gets hot, it expands and takes more space. If we put a balloon on a bottle and heat the bottle, the balloon fills up because the air inside e
Fire needs air to burn
Fire needs air to burn. If we cover a burning candle with a glass, it stops burning after some time because the air inside gets used up.
Learning Objectives
- Understand that air is present all around us even though we cannot see it.
- Learn the properties of air such as it occupies space, has weight, expands on heating, and is needed for burning.
- Know what wind is and how a wind vane helps us find the direction of wind.
- Perform simple activities to observe the properties of air.
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Sources & Official References
Content is aligned to the official syllabus. Refer to the board website for the latest curriculum.
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