Understanding the WeatherClass 7 Social Science NCERT Solutions
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Q1Questions and activities
Match the instrument with the weather element it measures.
Instrument used Element of the Weather (1) Hygrometer (a) Precipitation (2) Anemometer (b) Atmospheric pressure (3) Barometer (c) Wind direction and speed (4) Thermometer (d) Humidity (5) Rain gauge (e) Temperature
Solution
The correct matches are as follows:
| Instrument used | Element of the Weather |
|---|---|
| (1) Hygrometer | (d) Humidity |
| (2) Anemometer | (c) Wind direction and speed |
| (3) Barometer | (b) Atmospheric pressure |
| (4) Thermometer | (e) Temperature |
| (5) Rain gauge | (a) Precipitation |
Q2Questions and activities
Jyotsna is deciding what clothes to pack for her school trip to Mumbai in June. She looks at the weather forecast, which predicts and humidity. What would be your advice to her?
Solution
The weather forecast for Mumbai predicts a temperature of and humidity. This indicates that the weather will be hot and very humid. High humidity means that sweat will not evaporate easily, which can make one feel uncomfortable and sticky.
My advice to Jyotsna would be to pack light and breathable clothes. Fabrics like cotton are a good choice as they absorb sweat and allow air to circulate, helping to keep the body cool. She should avoid synthetic fabrics like polyester or nylon, which can trap heat and moisture. Loose-fitting clothes would also be more comfortable than tight ones in such weather conditions.
Q3Questions and activities
Imagine that a small group of students is setting up a rain gauge. Here are some options for the site. The school vegetable garden. The terrace of the school building. Open ground with elevated platform. Compound wall of school. Verandah of the school laboratory. Discuss in your group and finalise the site. Write down the reasons for your decision.
Solution
The best site to set up the rain gauge is 3. Open ground with elevated platform.
Reasons for the decision:
As mentioned in the chapter, a rain gauge should be placed in an open area, away from objects that might obstruct rain. It should also be on a flat surface where it will not tilt or topple.
- The school vegetable garden is not ideal because tall plants or trees in the garden could block some of the rain from entering the gauge, leading to an inaccurate measurement.
- The terrace of the school building could be a good open space, but it might be too windy, and there could be structures on the terrace that obstruct rain. It could be a secondary option if secured properly.
- Open ground with an elevated platform is the most suitable option. The open ground ensures there are no obstructions like trees or buildings nearby. The elevated platform provides a stable, flat surface, preventing the gauge from tilting and protecting it from splashes from the ground, which could affect the reading.
- The compound wall of the school is a poor location because the wall itself is an obstruction and would block rain from certain directions.
- The verandah of the school laboratory is completely unsuitable because it is a covered area and will not collect any rainfall.
Q4Questions and activities
Below is a chart taken from IMD, Jammu and Kashmir. Looking at the data available, write a short script to report the weather conditions in different parts of Jammu and Kashmir on the date shown. (Hint: Cover the temperature range, maximum and minimum temperatures, humidity, precipitation, etc.) Daily Weather Parameters Jammu & Kashmir (EVENING) DATE: 01-02-2024 | \multirow{3}{}{Station} | \multicolumn{3}{|c|}{max temperature of date} | \multicolumn{3}{|c|}{min temperature of date} | \multicolumn{2}{|c|}{\multirow{2}{}{from 0830 to 1730 hrs (mm/cm)}} & \multicolumn{2}{|c|}{\multirow{2}{*}{24 hrs R/F ending 0830 of date (mm/cm)}} & \multicolumn{2}{|c|}{relative humidity} \n|---|---|---|---|---|---|---|---|---|---|---|---|---| | | ACT () | NOR () | DEP () | ACT () | NOR () | DEP () | R/F (mm) | S/N (cm) | R/F | S/N | 0830 (%) | 1730 (%) | | SRINAGAR | 6.5 | 8.9 | -2.4 | 0.2 | -0.7 | 0.9 | TR | 0.0 | 13.4 | 2.4 | 89 | 89 | | QAZIGUND | 3.2 | 8.5 | -5.3 | -0.4 | -2.1 | 1.7 | 11.8 | 10.0 | 36.2 | 22.0 | 97 | 90 | | PAHALGAM | 1.1 | 5.6 | -4.5 | -4.1 | -6.1 | 2.0 | 6.0 | 8.0 | 19.4 | 23.0 | 96 | 96 | | KUPWARA | 5.1 | 8.5 | -3.4 | -0.7 | -2.3 | 1.6 | 0.5 | 0.0 | 21.9 | 10.0 | 97 | 94 | | KUKERNAG | 2.6 | 6.6 | -4.0 | -1.4 | -2.4 | 1.0 | 12.0 | 8.0 | 35.2 | 30.0 | 96 | 97 | | GULMARG | -2.6 | 1.4 | -4.0 | -7.6 | -7.6 | 0.0 | 8.2 | 6.35 | 35.2 | 35.0 | 76 | 100 | | MUZAFARABAD | 8.5 | - | - | 5.6 | - | - | - | - | 25.8 | - | 93 | - |
Solution
Weather Report Script for Jammu & Kashmir
(Start of Script)
Good evening, and welcome to the weather report. Here is the update for Jammu and Kashmir for February 1st, 2024.
Today, most parts of the region experienced cold and wet conditions, with temperatures remaining significantly below normal. Widespread rain and snowfall were observed across the valley.
In the capital, Srinagar, the maximum temperature was , which is about degrees below normal. The city received a trace amount of rainfall during the day, and humidity remained high at .
Significant weather activity was seen in other areas. Qazigund was particularly cold, with a maximum temperature of only , a departure of over 5 degrees from normal. It received considerable rain and snowfall, with cm of snow recorded during the day.
The popular tourist destination of Gulmarg was the coldest station, with the maximum temperature dropping to minus and the minimum plummeting to minus . Gulmarg also received fresh snowfall of over cm during the day, and humidity reached in the evening.
Pahalgam and Kukernag also recorded sub-zero minimum temperatures and received fresh spells of rain and snow.
Overall, the weather across Jammu and Kashmir remains cold and damp due to active precipitation. Residents and tourists are advised to take necessary precautions against the cold. That is all for the weather tonight.
(End of Script)