PPTs-Chapter 2-Understanding the Weather-Class 7-Social Science

 PowerPoint Presentation for Chapter 2-Understanding the Weather-Class 7-Subject Social Science

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Weather

Weather is the condition of the Earth's atmosphere at a particular time and place.

It includes temperature, rainfall, wind, humidity, and air pressure.

Atmosphere: 

1. It is the layer of gases that surround some planets — in the case of our Earth, we call these gases ‘air’. 

2. The Earth’s atmosphere may be compared to a cake with several layers. 

3. The layer closest to the surface of the Earth is called the ‘troposphere’.

4. We use many words to describe the weather — hot, cold, rainy, cloudy, humid, snowy, windy, and so on.

Elements of Weather

Temperature: How hot or cold the atmosphere is.

Precipitation: Any form of water, such as rain, snow, 

                         sleet or hail, that falls from the sky.

Atmospheric Pressure: The weight of the air above us, 

                                         felt on the Earth’s surface.

Wind: The movement of air, including its speed and 

           direction.

Humidity: The amount of water vapour in the air.

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To download PPTs Click Below:

Chapter 2- Understanding the Weather

Chapter 1- Geographical Diversity of India