NCERT Solutions Class 7 Social Science Chapter 2 Understanding the Weather
In this chapter, we look at the normal, everyday atmospheric conditions with which we are all familiar, which we call "weather." We will discuss the five principal characteristics of weather–Temperature, Precipitation, Pressure, Wind, and Humidity–as well as the specific instruments that are used to measure the five characteristics of weather. Weather is an integral part of humans' planning of their daily lives, along with agriculture, transportation, planning for or preparing for natural disasters, etc.
The NCERT Solutions offer precise definitions of weather and climate, demonstrate the differences, and offer practical examples of how meteorological data (i.e., weather observations) are collected.
1.0Download NCERT Solutions Class 7 Social Science Chapter 2 : Understanding the Weather: Free PDF
Download the NCERT Solutions for Class 7 Social Science Chapter: Understanding the Weather in our free PDF, prepared by experts for quick reference and effective revision.
2.0Important Concepts of Class 7 Social Science Chapter 2: Understanding the Weather - Brief Explanation
The study of weather is called Meteorology. It provides short-term atmospheric information crucial for planning and safety.
Weather vs. Climate
The distinction between weather and climate is based on time:
- Weather: The short-term condition of the atmosphere at a specific place and time (e.g., Today is sunny; tomorrow will be rainy). It changes daily, even hourly.
- Climate: The average weather pattern observed over a long period (usually 30 years or more) in a large area (e.g., India has a tropical monsoon climate).
Elements of Weather and Their Instruments
Weather is defined by the following five measurable elements:
Importance of Weather Prediction
Accurate weather forecasting by organizations like the India Meteorological Department (IMD) is essential because it helps:
- Farmers decide the right time for sowing, harvesting, or protecting crops from frost/heavy rain.
- Aviation and Shipping plan routes and schedules to ensure safety.
- Governments issue early warnings for natural disasters like cyclones, floods, or heat waves, allowing for timely evacuation and disaster preparedness.
3.0NCERT Class 7 Social Science Chapter 2: Understanding the Weather - Detailed Solutions
- Match the instrument with the weather element it measures.
Ans.
- Jyotsna is deciding what clothes to pack for her school trip to Mumbai in June. She looks at the weather forecast, which predicts 29∘C and 84% humidity. What would be your advice to her?
Ans. Since Jyotsna is going to Mumbai in June, and the forecast shows 29∘C with 84% humidity, here's some advice for her:
(i) Pack light and breathable clothes: Cotton clothes are best as they absorb sweat and keep you cool.
(ii) Carry a cap or hat and sunglasses: To protect from the sun when outdoors.
(iii) Bring an umbrella or a raincoat: June is the start of the monsoon season in Mumbai, so sudden rains are common.
(iv) Wear comfortable footwear: Preferably water-resistant shoes or sandals in case it rains.
(v) Stay hydrated: It can feel hotter due to high humidity, so drinking plenty of water is important.
4.0Key Features of NCERT Class 7 Social Science Chapter 2: Understanding the Weather
The purpose of the objectives is to develop fundamental scientific literacy pertaining to the conditions of the atmosphere.
- Scientific Vocabulary: Explicitly states clear definitions of important terms related to each of the four elements: weather, climate, humidity, and atmospheric pressure (or barometric pressure).
- Knowledge of Instruments: Explicitly connects each atmospheric condition back to its specific measuring instrument (e.g., Anemometer for Wind Speed), which can support practical learning.
- Practical Importance: Highlights the practical importance of forecasts for particular groups (farmers, sailors, governments) in tracking and supporting future activity.
- Differentiation Skill: Specifically states the key difference between weather (value over time - short term) and climate (average - longer term) using simple analogies.
- NCERT Textbook: Link to the NCERT textbook, all answers are accurate to the best of knowledge and presented useful in the context of the CBSE curriculum.
5.0Benefits of NCERT Class 7 Social Science Chapter 2 Understanding the Weather
Utilizing these NCERT solutions will improve a student's observational and analytical skills:
- Scientific Awareness. Students will understand the science behind their daily surroundings and the factors that affect them.
- Data Literacy. They will no longer consider weather to be a random observation; rather, they will understand it is measurable and based on data, thus developing a scientific attitude.
- Informed Actions. By examining the factors that affect weather, they will be able to make informed decisions regarding their daily planning (e.g., carrying an umbrella if humidity is high).
- Vocabulary Development. Students will understand what key meteorological terms mean, such as Barometer, Anemometer, Hygrometer, and Precipitation.
- Preparedness. Throughout the material, there are references to the civic responsibility of monitoring weather conditions for safety and disaster mitigation.