Hinglish

Weather and Its Elements

Class 7 Social Science · Chapter 2: Understanding the Weather · NCERT Exploring Society: India and Beyond section 2.1

Learn

Kabir wakes up on a December morning, shivers and pulls on a sweater; in May he'd pick the thinnest cotton shirt. His body is sensing the weather: the state of the atmosphere at a particular time and place. The atmosphere is the blanket of gases (air) around the Earth. The layer closest to the ground, the troposphere, 6–18 km thick, is where we live and where almost all weather happens.

We describe weather with words like hot, chilly, humid and windy, but these mean different things to different people. When Zoya in Chennai video-calls Ishaan in Srinagar and says "it's cold today!", Ishaan laughs: her "cold" is his pleasant spring. To share weather clearly we measure its elements: temperature, precipitation (rain, snow, sleet, hail), atmospheric pressure (the weight of the air above us), wind (speed and direction) and humidity (water vapour in the air).

Long before instruments, people read nature's clues: birds flying low, ants carrying eggs to higher ground, frogs croaking loudly or pine cones closing in damp air all hinted at rain. Such knowledge passed down generations, and many communities still use it to guess when the monsoon will arrive. Today meteorology, the systematic study of weather, uses precise measurements to make forecasts.

Explore: which element of weather?

  1. Sort each report.

Remember

  • Weather is the state of the atmosphere at a given time and place; it happens in the troposphere.
  • Its elements: temperature, precipitation, pressure, wind and humidity; people once read nature's clues to forecast.

Quick check

Where does almost all weather happen?

  1. troposphere
  2. stratosphere
  3. ozone layer
  4. outer space
Answer

troposphere. It is the lowest layer of the atmosphere, where we live.

Think about it

What weather sayings or signs do elders in your area use to predict rain?

One answer

Answers vary: dragonflies swarming low, a ring around the Moon, ants moving house, peacocks calling, or a sticky, still afternoon.

Practice

Practise with fresh questions at three levels (easy, medium, hard), some answered hands-on, with hints and worked answers. Get 4 of your last 5 right to finish the topic.